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Finding the Fourth Proportional to 120,167.59, 165,834.08 and 66,453.66

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Solution

The fourth proportional to 120,167.59, 165,834.08 and 66,453.66 is: 91,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,167.59 : 165,834.08 = 66,453.66 : x
  2. Step 2: Convert to fraction form
    120,167.59/165,834.08 = 66,453.66/x
  3. Step 3: Cross multiply
    120,167.59x = 165,834.08 × 66,453.66
  4. Step 4: Simplify right side
    120,167.59x = 11,020,281,568.73
  5. Step 5: Solve for x
    x = 11,020,281,568.73/120,167.59
  6. Step 6: Final answer
    x = 91,707.60

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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.