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Finding the Fourth Proportional to 234,695.66, 351,902.88 and 74,702.48

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Solution

The fourth proportional to 234,695.66, 351,902.88 and 74,702.48 is: 112,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,695.66 : 351,902.88 = 74,702.48 : x
  2. Step 2: Convert to fraction form
    234,695.66/351,902.88 = 74,702.48/x
  3. Step 3: Cross multiply
    234,695.66x = 351,902.88 × 74,702.48
  4. Step 4: Simplify right side
    234,695.66x = 26,288,017,855.14
  5. Step 5: Solve for x
    x = 26,288,017,855.14/234,695.66
  6. Step 6: Final answer
    x = 112,008.96

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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.