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Finding the Fourth Proportional to 63,707.84, 95,314.68 and 45,979.28

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Solution

The fourth proportional to 63,707.84, 95,314.68 and 45,979.28 is: 68,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,707.84 : 95,314.68 = 45,979.28 : x
  2. Step 2: Convert to fraction form
    63,707.84/95,314.68 = 45,979.28/x
  3. Step 3: Cross multiply
    63,707.84x = 95,314.68 × 45,979.28
  4. Step 4: Simplify right side
    63,707.84x = 4,382,500,359.83
  5. Step 5: Solve for x
    x = 4,382,500,359.83/63,707.84
  6. Step 6: Final answer
    x = 68,790.60

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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.