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Finding the Fourth Proportional to 103,463.30, 155,194.95 and 61,472.90

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Solution

The fourth proportional to 103,463.30, 155,194.95 and 61,472.90 is: 92,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,463.30 : 155,194.95 = 61,472.90 : x
  2. Step 2: Convert to fraction form
    103,463.30/155,194.95 = 61,472.90/x
  3. Step 3: Cross multiply
    103,463.30x = 155,194.95 × 61,472.90
  4. Step 4: Simplify right side
    103,463.30x = 9,540,283,641.86
  5. Step 5: Solve for x
    x = 9,540,283,641.86/103,463.30
  6. Step 6: Final answer
    x = 92,209.35

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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.