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Finding the Fourth Proportional to 72,407,807.70, 108,611,711.55 and 24,538,751.70

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Solution

The fourth proportional to 72,407,807.70, 108,611,711.55 and 24,538,751.70 is: 36,808,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,407,807.70 : 108,611,711.55 = 24,538,751.70 : x
  2. Step 2: Convert to fraction form
    72,407,807.70/108,611,711.55 = 24,538,751.70/x
  3. Step 3: Cross multiply
    72,407,807.70x = 108,611,711.55 × 24,538,751.70
  4. Step 4: Simplify right side
    72,407,807.70x = 2,665,195,821,437,472
  5. Step 5: Solve for x
    x = 2,665,195,821,437,472/72,407,807.70
  6. Step 6: Final answer
    x = 36,808,127.55

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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.