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Finding the Fourth Proportional to 109,148,812,657.80, 163,723,218,986.70 and 109,148,812,657.80

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Solution

The fourth proportional to 109,148,812,657.80, 163,723,218,986.70 and 109,148,812,657.80 is: 163,723,218,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,148,812,657.80 : 163,723,218,986.70 = 109,148,812,657.80 : x
  2. Step 2: Convert to fraction form
    109,148,812,657.80/163,723,218,986.70 = 109,148,812,657.80/x
  3. Step 3: Cross multiply
    109,148,812,657.80x = 163,723,218,986.70 × 109,148,812,657.80
  4. Step 4: Simplify right side
    109,148,812,657.80x = 17,870,194,956,911,285,108,736
  5. Step 5: Solve for x
    x = 17,870,194,956,911,285,108,736/109,148,812,657.80
  6. Step 6: Final answer
    x = 163,723,218,986.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.