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Finding the Fourth Proportional to 63,808.32, 88,120.80 and 47,867.52

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Solution

The fourth proportional to 63,808.32, 88,120.80 and 47,867.52 is: 66,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,808.32 : 88,120.80 = 47,867.52 : x
  2. Step 2: Convert to fraction form
    63,808.32/88,120.80 = 47,867.52/x
  3. Step 3: Cross multiply
    63,808.32x = 88,120.80 × 47,867.52
  4. Step 4: Simplify right side
    63,808.32x = 4,218,124,156.42
  5. Step 5: Solve for x
    x = 4,218,124,156.42/63,808.32
  6. Step 6: Final answer
    x = 66,106.18

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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.