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Finding the Fourth Proportional to 134,220.65, 200,892.89 and 98,672.56

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Solution

The fourth proportional to 134,220.65, 200,892.89 and 98,672.56 is: 147,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,220.65 : 200,892.89 = 98,672.56 : x
  2. Step 2: Convert to fraction form
    134,220.65/200,892.89 = 98,672.56/x
  3. Step 3: Cross multiply
    134,220.65x = 200,892.89 × 98,672.56
  4. Step 4: Simplify right side
    134,220.65x = 19,822,615,742.10
  5. Step 5: Solve for x
    x = 19,822,615,742.10/134,220.65
  6. Step 6: Final answer
    x = 147,686.78

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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.