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Finding the Fourth Proportional to 234,038.90, 322,972.98 and 126,608.91

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Solution

The fourth proportional to 234,038.90, 322,972.98 and 126,608.91 is: 174,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,038.90 : 322,972.98 = 126,608.91 : x
  2. Step 2: Convert to fraction form
    234,038.90/322,972.98 = 126,608.91/x
  3. Step 3: Cross multiply
    234,038.90x = 322,972.98 × 126,608.91
  4. Step 4: Simplify right side
    234,038.90x = 40,891,256,957.25
  5. Step 5: Solve for x
    x = 40,891,256,957.25/234,038.90
  6. Step 6: Final answer
    x = 174,719.92

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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.