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Finding the Fourth Proportional to 63,878.67, 95,859.01 and 42,842.47

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Solution

The fourth proportional to 63,878.67, 95,859.01 and 42,842.47 is: 64,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,878.67 : 95,859.01 = 42,842.47 : x
  2. Step 2: Convert to fraction form
    63,878.67/95,859.01 = 42,842.47/x
  3. Step 3: Cross multiply
    63,878.67x = 95,859.01 × 42,842.47
  4. Step 4: Simplify right side
    63,878.67x = 4,106,836,760.15
  5. Step 5: Solve for x
    x = 4,106,836,760.15/63,878.67
  6. Step 6: Final answer
    x = 64,291.21

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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.