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Finding the Fourth Proportional to 103,600.62, 155,401.02 and 44,397.90

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Solution

The fourth proportional to 103,600.62, 155,401.02 and 44,397.90 is: 66,596.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,600.62 : 155,401.02 = 44,397.90 : x
  2. Step 2: Convert to fraction form
    103,600.62/155,401.02 = 44,397.90/x
  3. Step 3: Cross multiply
    103,600.62x = 155,401.02 × 44,397.90
  4. Step 4: Simplify right side
    103,600.62x = 6,899,478,945.86
  5. Step 5: Solve for x
    x = 6,899,478,945.86/103,600.62
  6. Step 6: Final answer
    x = 66,596.89

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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.