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Finding the Fourth Proportional to 363,572.82, 545,608.31 and 126,915.46

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Solution

The fourth proportional to 363,572.82, 545,608.31 and 126,915.46 is: 190,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,572.82 : 545,608.31 = 126,915.46 : x
  2. Step 2: Convert to fraction form
    363,572.82/545,608.31 = 126,915.46/x
  3. Step 3: Cross multiply
    363,572.82x = 545,608.31 × 126,915.46
  4. Step 4: Simplify right side
    363,572.82x = 69,246,128,644.17
  5. Step 5: Solve for x
    x = 69,246,128,644.17/363,572.82
  6. Step 6: Final answer
    x = 190,460.14

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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.