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Finding the Fourth Proportional to 371,763.85, 557,332.29 and 161,243.23

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Solution

The fourth proportional to 371,763.85, 557,332.29 and 161,243.23 is: 241,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,763.85 : 557,332.29 = 161,243.23 : x
  2. Step 2: Convert to fraction form
    371,763.85/557,332.29 = 161,243.23/x
  3. Step 3: Cross multiply
    371,763.85x = 557,332.29 × 161,243.23
  4. Step 4: Simplify right side
    371,763.85x = 89,866,058,622.90
  5. Step 5: Solve for x
    x = 89,866,058,622.90/371,763.85
  6. Step 6: Final answer
    x = 241,728.88

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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.