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Finding the Fourth Proportional to 107,967.31, 148,994.98 and 62,654.49

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Solution

The fourth proportional to 107,967.31, 148,994.98 and 62,654.49 is: 86,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,967.31 : 148,994.98 = 62,654.49 : x
  2. Step 2: Convert to fraction form
    107,967.31/148,994.98 = 62,654.49/x
  3. Step 3: Cross multiply
    107,967.31x = 148,994.98 × 62,654.49
  4. Step 4: Simplify right side
    107,967.31x = 9,335,204,327.82
  5. Step 5: Solve for x
    x = 9,335,204,327.82/107,967.31
  6. Step 6: Final answer
    x = 86,463.25

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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.