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Finding the Fourth Proportional to 113,502.10, 169,925.10 and 110,221.60

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Solution

The fourth proportional to 113,502.10, 169,925.10 and 110,221.60 is: 165,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,502.10 : 169,925.10 = 110,221.60 : x
  2. Step 2: Convert to fraction form
    113,502.10/169,925.10 = 110,221.60/x
  3. Step 3: Cross multiply
    113,502.10x = 169,925.10 × 110,221.60
  4. Step 4: Simplify right side
    113,502.10x = 18,729,416,402.16
  5. Step 5: Solve for x
    x = 18,729,416,402.16/113,502.10
  6. Step 6: Final answer
    x = 165,013.83

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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.