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Finding the Fourth Proportional to 382,139.60, 572,553.30 and 248,951.30

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Solution

The fourth proportional to 382,139.60, 572,553.30 and 248,951.30 is: 372,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,139.60 : 572,553.30 = 248,951.30 : x
  2. Step 2: Convert to fraction form
    382,139.60/572,553.30 = 248,951.30/x
  3. Step 3: Cross multiply
    382,139.60x = 572,553.30 × 248,951.30
  4. Step 4: Simplify right side
    382,139.60x = 142,537,888,354.29
  5. Step 5: Solve for x
    x = 142,537,888,354.29/382,139.60
  6. Step 6: Final answer
    x = 372,999.52

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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.