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Finding the Fourth Proportional to 80,459.31, 111,034.16 and 44,654.48

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Solution

The fourth proportional to 80,459.31, 111,034.16 and 44,654.48 is: 61,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,459.31 : 111,034.16 = 44,654.48 : x
  2. Step 2: Convert to fraction form
    80,459.31/111,034.16 = 44,654.48/x
  3. Step 3: Cross multiply
    80,459.31x = 111,034.16 × 44,654.48
  4. Step 4: Simplify right side
    80,459.31x = 4,958,172,677.04
  5. Step 5: Solve for x
    x = 4,958,172,677.04/80,459.31
  6. Step 6: Final answer
    x = 61,623.36

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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.