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Finding the Fourth Proportional to 68,904.52, 95,098.64 and 42,062.65

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Solution

The fourth proportional to 68,904.52, 95,098.64 and 42,062.65 is: 58,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904.52 : 95,098.64 = 42,062.65 : x
  2. Step 2: Convert to fraction form
    68,904.52/95,098.64 = 42,062.65/x
  3. Step 3: Cross multiply
    68,904.52x = 95,098.64 × 42,062.65
  4. Step 4: Simplify right side
    68,904.52x = 4,000,100,809.80
  5. Step 5: Solve for x
    x = 4,000,100,809.80/68,904.52
  6. Step 6: Final answer
    x = 58,052.81

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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.