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Finding the Fourth Proportional to 103,524.80, 155,308.80 and 59,115.20

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Solution

The fourth proportional to 103,524.80, 155,308.80 and 59,115.20 is: 88,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,524.80 : 155,308.80 = 59,115.20 : x
  2. Step 2: Convert to fraction form
    103,524.80/155,308.80 = 59,115.20/x
  3. Step 3: Cross multiply
    103,524.80x = 155,308.80 × 59,115.20
  4. Step 4: Simplify right side
    103,524.80x = 9,181,110,773.76
  5. Step 5: Solve for x
    x = 9,181,110,773.76/103,524.80
  6. Step 6: Final answer
    x = 88,685.13

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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.