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Finding the Fourth Proportional to 82,387.65, 113,695.08 and 44,661.90

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Solution

The fourth proportional to 82,387.65, 113,695.08 and 44,661.90 is: 61,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,387.65 : 113,695.08 = 44,661.90 : x
  2. Step 2: Convert to fraction form
    82,387.65/113,695.08 = 44,661.90/x
  3. Step 3: Cross multiply
    82,387.65x = 113,695.08 × 44,661.90
  4. Step 4: Simplify right side
    82,387.65x = 5,077,838,293.45
  5. Step 5: Solve for x
    x = 5,077,838,293.45/82,387.65
  6. Step 6: Final answer
    x = 61,633.49

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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.