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Finding the Fourth Proportional to 107,959.86, 148,944.47 and 62,612.42

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Solution

The fourth proportional to 107,959.86, 148,944.47 and 62,612.42 is: 86,381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,959.86 : 148,944.47 = 62,612.42 : x
  2. Step 2: Convert to fraction form
    107,959.86/148,944.47 = 62,612.42/x
  3. Step 3: Cross multiply
    107,959.86x = 148,944.47 × 62,612.42
  4. Step 4: Simplify right side
    107,959.86x = 9,325,772,654.53
  5. Step 5: Solve for x
    x = 9,325,772,654.53/107,959.86
  6. Step 6: Final answer
    x = 86,381.85

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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.