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Finding the Fourth Proportional to 145,691.44, 218,549.53 and 40,510.41

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Solution

The fourth proportional to 145,691.44, 218,549.53 and 40,510.41 is: 60,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,691.44 : 218,549.53 = 40,510.41 : x
  2. Step 2: Convert to fraction form
    145,691.44/218,549.53 = 40,510.41/x
  3. Step 3: Cross multiply
    145,691.44x = 218,549.53 × 40,510.41
  4. Step 4: Simplify right side
    145,691.44x = 8,853,530,410.62
  5. Step 5: Solve for x
    x = 8,853,530,410.62/145,691.44
  6. Step 6: Final answer
    x = 60,769.05

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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.