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Finding the Fourth Proportional to 107,783.31, 148,744.67 and 62,461.38

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Solution

The fourth proportional to 107,783.31, 148,744.67 and 62,461.38 is: 86,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,783.31 : 148,744.67 = 62,461.38 : x
  2. Step 2: Convert to fraction form
    107,783.31/148,744.67 = 62,461.38/x
  3. Step 3: Cross multiply
    107,783.31x = 148,744.67 × 62,461.38
  4. Step 4: Simplify right side
    107,783.31x = 9,290,797,355.84
  5. Step 5: Solve for x
    x = 9,290,797,355.84/107,783.31
  6. Step 6: Final answer
    x = 86,198.85

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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.