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Finding the Fourth Proportional to 86,147.58, 129,221.43 and 32,827.14

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Solution

The fourth proportional to 86,147.58, 129,221.43 and 32,827.14 is: 49,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,147.58 : 129,221.43 = 32,827.14 : x
  2. Step 2: Convert to fraction form
    86,147.58/129,221.43 = 32,827.14/x
  3. Step 3: Cross multiply
    86,147.58x = 129,221.43 × 32,827.14
  4. Step 4: Simplify right side
    86,147.58x = 4,241,969,973.61
  5. Step 5: Solve for x
    x = 4,241,969,973.61/86,147.58
  6. Step 6: Final answer
    x = 49,240.73

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1.5x scale

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.