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Finding the Fourth Proportional to 70,429,814.40, 98,668,924.80 and 70,429,814.40

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Solution

The fourth proportional to 70,429,814.40, 98,668,924.80 and 70,429,814.40 is: 98,668,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,429,814.40 : 98,668,924.80 = 70,429,814.40 : x
  2. Step 2: Convert to fraction form
    70,429,814.40/98,668,924.80 = 70,429,814.40/x
  3. Step 3: Cross multiply
    70,429,814.40x = 98,668,924.80 × 70,429,814.40
  4. Step 4: Simplify right side
    70,429,814.40x = 6,949,234,060,711,557
  5. Step 5: Solve for x
    x = 6,949,234,060,711,557/70,429,814.40
  6. Step 6: Final answer
    x = 98,668,924.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.