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Finding the Fourth Proportional to 354,954.80, 532,302.60 and 118,305.20

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Solution

The fourth proportional to 354,954.80, 532,302.60 and 118,305.20 is: 177,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,954.80 : 532,302.60 = 118,305.20 : x
  2. Step 2: Convert to fraction form
    354,954.80/532,302.60 = 118,305.20/x
  3. Step 3: Cross multiply
    354,954.80x = 532,302.60 × 118,305.20
  4. Step 4: Simplify right side
    354,954.80x = 62,974,165,553.52
  5. Step 5: Solve for x
    x = 62,974,165,553.52/354,954.80
  6. Step 6: Final answer
    x = 177,414.60

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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.