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Finding the Fourth Proportional to 73,822,639.20, 110,700,781.20 and 28,369,327.20

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Solution

The fourth proportional to 73,822,639.20, 110,700,781.20 and 28,369,327.20 is: 42,541,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,822,639.20 : 110,700,781.20 = 28,369,327.20 : x
  2. Step 2: Convert to fraction form
    73,822,639.20/110,700,781.20 = 28,369,327.20/x
  3. Step 3: Cross multiply
    73,822,639.20x = 110,700,781.20 × 28,369,327.20
  4. Step 4: Simplify right side
    73,822,639.20x = 3,140,506,683,158,408.50
  5. Step 5: Solve for x
    x = 3,140,506,683,158,408.50/73,822,639.20
  6. Step 6: Final answer
    x = 42,541,240.97

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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.