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Finding the Fourth Proportional to 107,818.32, 161,719.80 and 40,337.52

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Solution

The fourth proportional to 107,818.32, 161,719.80 and 40,337.52 is: 60,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,818.32 : 161,719.80 = 40,337.52 : x
  2. Step 2: Convert to fraction form
    107,818.32/161,719.80 = 40,337.52/x
  3. Step 3: Cross multiply
    107,818.32x = 161,719.80 × 40,337.52
  4. Step 4: Simplify right side
    107,818.32x = 6,523,375,666.90
  5. Step 5: Solve for x
    x = 6,523,375,666.90/107,818.32
  6. Step 6: Final answer
    x = 60,503.41

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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.