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Finding the Fourth Proportional to 226,702.64, 312,876.60 and 129,941.12

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Solution

The fourth proportional to 226,702.64, 312,876.60 and 129,941.12 is: 179,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,702.64 : 312,876.60 = 129,941.12 : x
  2. Step 2: Convert to fraction form
    226,702.64/312,876.60 = 129,941.12/x
  3. Step 3: Cross multiply
    226,702.64x = 312,876.60 × 129,941.12
  4. Step 4: Simplify right side
    226,702.64x = 40,655,535,825.79
  5. Step 5: Solve for x
    x = 40,655,535,825.79/226,702.64
  6. Step 6: Final answer
    x = 179,334.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.