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Finding the Fourth Proportional to 103,610.61, 155,249.80 and 93,646.13

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Solution

The fourth proportional to 103,610.61, 155,249.80 and 93,646.13 is: 140,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,610.61 : 155,249.80 = 93,646.13 : x
  2. Step 2: Convert to fraction form
    103,610.61/155,249.80 = 93,646.13/x
  3. Step 3: Cross multiply
    103,610.61x = 155,249.80 × 93,646.13
  4. Step 4: Simplify right side
    103,610.61x = 14,538,541,942.91
  5. Step 5: Solve for x
    x = 14,538,541,942.91/103,610.61
  6. Step 6: Final answer
    x = 140,319.05

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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.