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Finding the Fourth Proportional to 120,167.61, 180,093.69 and 88,429.08

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Solution

The fourth proportional to 120,167.61, 180,093.69 and 88,429.08 is: 132,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,167.61 : 180,093.69 = 88,429.08 : x
  2. Step 2: Convert to fraction form
    120,167.61/180,093.69 = 88,429.08/x
  3. Step 3: Cross multiply
    120,167.61x = 180,093.69 × 88,429.08
  4. Step 4: Simplify right side
    120,167.61x = 15,925,519,320.51
  5. Step 5: Solve for x
    x = 15,925,519,320.51/120,167.61
  6. Step 6: Final answer
    x = 132,527.55

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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.