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Finding the Fourth Proportional to 371,391.90, 557,124.75 and 134,753.03

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Solution

The fourth proportional to 371,391.90, 557,124.75 and 134,753.03 is: 202,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,391.90 : 557,124.75 = 134,753.03 : x
  2. Step 2: Convert to fraction form
    371,391.90/557,124.75 = 134,753.03/x
  3. Step 3: Cross multiply
    371,391.90x = 557,124.75 × 134,753.03
  4. Step 4: Simplify right side
    371,391.90x = 75,074,245,364.87
  5. Step 5: Solve for x
    x = 75,074,245,364.87/371,391.90
  6. Step 6: Final answer
    x = 202,142.93

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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.