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Finding the Fourth Proportional to 331,661.04, 457,691.40 and 180,757.68

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Solution

The fourth proportional to 331,661.04, 457,691.40 and 180,757.68 is: 249,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,661.04 : 457,691.40 = 180,757.68 : x
  2. Step 2: Convert to fraction form
    331,661.04/457,691.40 = 180,757.68/x
  3. Step 3: Cross multiply
    331,661.04x = 457,691.40 × 180,757.68
  4. Step 4: Simplify right side
    331,661.04x = 82,731,235,619.95
  5. Step 5: Solve for x
    x = 82,731,235,619.95/331,661.04
  6. Step 6: Final answer
    x = 249,445.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.