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Finding the Fourth Proportional to 48,581,970.80, 72,872,956.20 and 48,581,970.80

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Solution

The fourth proportional to 48,581,970.80, 72,872,956.20 and 48,581,970.80 is: 72,872,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,581,970.80 : 72,872,956.20 = 48,581,970.80 : x
  2. Step 2: Convert to fraction form
    48,581,970.80/72,872,956.20 = 48,581,970.80/x
  3. Step 3: Cross multiply
    48,581,970.80x = 72,872,956.20 × 48,581,970.80
  4. Step 4: Simplify right side
    48,581,970.80x = 3,540,311,830,218,079
  5. Step 5: Solve for x
    x = 3,540,311,830,218,079/48,581,970.80
  6. Step 6: Final answer
    x = 72,872,956.20

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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.