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Finding the Fourth Proportional to 183,691.38, 253,613.64 and 112,112.89

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Solution

The fourth proportional to 183,691.38, 253,613.64 and 112,112.89 is: 154,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,691.38 : 253,613.64 = 112,112.89 : x
  2. Step 2: Convert to fraction form
    183,691.38/253,613.64 = 112,112.89/x
  3. Step 3: Cross multiply
    183,691.38x = 253,613.64 × 112,112.89
  4. Step 4: Simplify right side
    183,691.38x = 28,433,358,123.82
  5. Step 5: Solve for x
    x = 28,433,358,123.82/183,691.38
  6. Step 6: Final answer
    x = 154,788.75

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1.5x scale

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.