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Finding the Fourth Proportional to 90,132.76, 135,103.80 and 33,948.56

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Solution

The fourth proportional to 90,132.76, 135,103.80 and 33,948.56 is: 50,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132.76 : 135,103.80 = 33,948.56 : x
  2. Step 2: Convert to fraction form
    90,132.76/135,103.80 = 33,948.56/x
  3. Step 3: Cross multiply
    90,132.76x = 135,103.80 × 33,948.56
  4. Step 4: Simplify right side
    90,132.76x = 4,586,579,854.47
  5. Step 5: Solve for x
    x = 4,586,579,854.47/90,132.76
  6. Step 6: Final answer
    x = 50,886.93

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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.