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Finding the Fourth Proportional to 99,188.60, 136,892.77 and 61,468.52

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Solution

The fourth proportional to 99,188.60, 136,892.77 and 61,468.52 is: 84,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,188.60 : 136,892.77 = 61,468.52 : x
  2. Step 2: Convert to fraction form
    99,188.60/136,892.77 = 61,468.52/x
  3. Step 3: Cross multiply
    99,188.60x = 136,892.77 × 61,468.52
  4. Step 4: Simplify right side
    99,188.60x = 8,414,595,132.47
  5. Step 5: Solve for x
    x = 8,414,595,132.47/99,188.60
  6. Step 6: Final answer
    x = 84,834.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.