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Finding the Fourth Proportional to 331,465.56, 457,420.08 and 180,562.56

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Solution

The fourth proportional to 331,465.56, 457,420.08 and 180,562.56 is: 249,175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,465.56 : 457,420.08 = 180,562.56 : x
  2. Step 2: Convert to fraction form
    331,465.56/457,420.08 = 180,562.56/x
  3. Step 3: Cross multiply
    331,465.56x = 457,420.08 × 180,562.56
  4. Step 4: Simplify right side
    331,465.56x = 82,592,940,640.20
  5. Step 5: Solve for x
    x = 82,592,940,640.20/331,465.56
  6. Step 6: Final answer
    x = 249,175.03

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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.