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Finding the Fourth Proportional to 292,702.52, 439,046.76 and 134,930.90

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Solution

The fourth proportional to 292,702.52, 439,046.76 and 134,930.90 is: 202,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,702.52 : 439,046.76 = 134,930.90 : x
  2. Step 2: Convert to fraction form
    292,702.52/439,046.76 = 134,930.90/x
  3. Step 3: Cross multiply
    292,702.52x = 439,046.76 × 134,930.90
  4. Step 4: Simplify right side
    292,702.52x = 59,240,974,468.88
  5. Step 5: Solve for x
    x = 59,240,974,468.88/292,702.52
  6. Step 6: Final answer
    x = 202,393.11

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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.