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Finding the Fourth Proportional to 361,702.40, 542,553.60 and 235,731.20

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Solution

The fourth proportional to 361,702.40, 542,553.60 and 235,731.20 is: 353,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,702.40 : 542,553.60 = 235,731.20 : x
  2. Step 2: Convert to fraction form
    361,702.40/542,553.60 = 235,731.20/x
  3. Step 3: Cross multiply
    361,702.40x = 542,553.60 × 235,731.20
  4. Step 4: Simplify right side
    361,702.40x = 127,896,811,192.32
  5. Step 5: Solve for x
    x = 127,896,811,192.32/361,702.40
  6. Step 6: Final answer
    x = 353,596.80

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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.