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Finding the Fourth Proportional to 89,871.76, 124,023.56 and 49,584.88

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Solution

The fourth proportional to 89,871.76, 124,023.56 and 49,584.88 is: 68,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,871.76 : 124,023.56 = 49,584.88 : x
  2. Step 2: Convert to fraction form
    89,871.76/124,023.56 = 49,584.88/x
  3. Step 3: Cross multiply
    89,871.76x = 124,023.56 × 49,584.88
  4. Step 4: Simplify right side
    89,871.76x = 6,149,693,339.77
  5. Step 5: Solve for x
    x = 6,149,693,339.77/89,871.76
  6. Step 6: Final answer
    x = 68,427.43

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1.5x scale

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.