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Finding the Fourth Proportional to 183,691.69, 253,614.08 and 112,113.20

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Solution

The fourth proportional to 183,691.69, 253,614.08 and 112,113.20 is: 154,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,691.69 : 253,614.08 = 112,113.20 : x
  2. Step 2: Convert to fraction form
    183,691.69/253,614.08 = 112,113.20/x
  3. Step 3: Cross multiply
    183,691.69x = 253,614.08 × 112,113.20
  4. Step 4: Simplify right side
    183,691.69x = 28,433,486,988.17
  5. Step 5: Solve for x
    x = 28,433,486,988.17/183,691.69
  6. Step 6: Final answer
    x = 154,789.19

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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.