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Finding the Fourth Proportional to 90,899.75, 136,347.03 and 24,339.92

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Solution

The fourth proportional to 90,899.75, 136,347.03 and 24,339.92 is: 36,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899.75 : 136,347.03 = 24,339.92 : x
  2. Step 2: Convert to fraction form
    90,899.75/136,347.03 = 24,339.92/x
  3. Step 3: Cross multiply
    90,899.75x = 136,347.03 × 24,339.92
  4. Step 4: Simplify right side
    90,899.75x = 3,318,675,120.70
  5. Step 5: Solve for x
    x = 3,318,675,120.70/90,899.75
  6. Step 6: Final answer
    x = 36,509.18

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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.