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Finding the Fourth Proportional to 107,774.78, 148,748.73 and 62,481.74

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Solution

The fourth proportional to 107,774.78, 148,748.73 and 62,481.74 is: 86,236.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,774.78 : 148,748.73 = 62,481.74 : x
  2. Step 2: Convert to fraction form
    107,774.78/148,748.73 = 62,481.74/x
  3. Step 3: Cross multiply
    107,774.78x = 148,748.73 × 62,481.74
  4. Step 4: Simplify right side
    107,774.78x = 9,294,079,473.19
  5. Step 5: Solve for x
    x = 9,294,079,473.19/107,774.78
  6. Step 6: Final answer
    x = 86,236.13

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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.