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Finding the Fourth Proportional to 183,540.52, 253,017.84 and 129,730.60

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Solution

The fourth proportional to 183,540.52, 253,017.84 and 129,730.60 is: 178,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,540.52 : 253,017.84 = 129,730.60 : x
  2. Step 2: Convert to fraction form
    183,540.52/253,017.84 = 129,730.60/x
  3. Step 3: Cross multiply
    183,540.52x = 253,017.84 × 129,730.60
  4. Step 4: Simplify right side
    183,540.52x = 32,824,156,193.90
  5. Step 5: Solve for x
    x = 32,824,156,193.90/183,540.52
  6. Step 6: Final answer
    x = 178,838.74

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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.