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Finding the Fourth Proportional to 220,854.57, 331,304.84 and 60,930.51

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Solution

The fourth proportional to 220,854.57, 331,304.84 and 60,930.51 is: 91,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,854.57 : 331,304.84 = 60,930.51 : x
  2. Step 2: Convert to fraction form
    220,854.57/331,304.84 = 60,930.51/x
  3. Step 3: Cross multiply
    220,854.57x = 331,304.84 × 60,930.51
  4. Step 4: Simplify right side
    220,854.57x = 20,186,572,562.02
  5. Step 5: Solve for x
    x = 20,186,572,562.02/220,854.57
  6. Step 6: Final answer
    x = 91,402.10

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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.