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Finding the Fourth Proportional to 54,979.40, 82,469.10 and 48,637.10

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Solution

The fourth proportional to 54,979.40, 82,469.10 and 48,637.10 is: 72,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,979.40 : 82,469.10 = 48,637.10 : x
  2. Step 2: Convert to fraction form
    54,979.40/82,469.10 = 48,637.10/x
  3. Step 3: Cross multiply
    54,979.40x = 82,469.10 × 48,637.10
  4. Step 4: Simplify right side
    54,979.40x = 4,011,057,863.61
  5. Step 5: Solve for x
    x = 4,011,057,863.61/54,979.40
  6. Step 6: Final answer
    x = 72,955.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.