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Finding the Fourth Proportional to 90,482.40, 135,657.99 and 60,826.68

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Solution

The fourth proportional to 90,482.40, 135,657.99 and 60,826.68 is: 91,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,482.40 : 135,657.99 = 60,826.68 : x
  2. Step 2: Convert to fraction form
    90,482.40/135,657.99 = 60,826.68/x
  3. Step 3: Cross multiply
    90,482.40x = 135,657.99 × 60,826.68
  4. Step 4: Simplify right side
    90,482.40x = 8,251,625,147.17
  5. Step 5: Solve for x
    x = 8,251,625,147.17/90,482.40
  6. Step 6: Final answer
    x = 91,195.91

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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.