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Finding the Fourth Proportional to 292,862.92, 439,136.52 and 157,999.30

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Solution

The fourth proportional to 292,862.92, 439,136.52 and 157,999.30 is: 236,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,862.92 : 439,136.52 = 157,999.30 : x
  2. Step 2: Convert to fraction form
    292,862.92/439,136.52 = 157,999.30/x
  3. Step 3: Cross multiply
    292,862.92x = 439,136.52 × 157,999.30
  4. Step 4: Simplify right side
    292,862.92x = 69,383,262,764.44
  5. Step 5: Solve for x
    x = 69,383,262,764.44/292,862.92
  6. Step 6: Final answer
    x = 236,913.78

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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.