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Finding the Fourth Proportional to 154,593.87, 232,943.82 and 127,129.11

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Solution

The fourth proportional to 154,593.87, 232,943.82 and 127,129.11 is: 191,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,593.87 : 232,943.82 = 127,129.11 : x
  2. Step 2: Convert to fraction form
    154,593.87/232,943.82 = 127,129.11/x
  3. Step 3: Cross multiply
    154,593.87x = 232,943.82 × 127,129.11
  4. Step 4: Simplify right side
    154,593.87x = 29,613,940,516.60
  5. Step 5: Solve for x
    x = 29,613,940,516.60/154,593.87
  6. Step 6: Final answer
    x = 191,559.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.