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Finding the Fourth Proportional to 63,642.40, 87,767.92 and 43,254.96

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Solution

The fourth proportional to 63,642.40, 87,767.92 and 43,254.96 is: 59,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.40 : 87,767.92 = 43,254.96 : x
  2. Step 2: Convert to fraction form
    63,642.40/87,767.92 = 43,254.96/x
  3. Step 3: Cross multiply
    63,642.40x = 87,767.92 × 43,254.96
  4. Step 4: Simplify right side
    63,642.40x = 3,796,397,868.88
  5. Step 5: Solve for x
    x = 3,796,397,868.88/63,642.40
  6. Step 6: Final answer
    x = 59,652.02

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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.