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Finding the Fourth Proportional to 120,225.71, 180,374.67 and 35,988.62

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Solution

The fourth proportional to 120,225.71, 180,374.67 and 35,988.62 is: 53,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,225.71 : 180,374.67 = 35,988.62 : x
  2. Step 2: Convert to fraction form
    120,225.71/180,374.67 = 35,988.62/x
  3. Step 3: Cross multiply
    120,225.71x = 180,374.67 × 35,988.62
  4. Step 4: Simplify right side
    120,225.71x = 6,491,434,554.38
  5. Step 5: Solve for x
    x = 6,491,434,554.38/120,225.71
  6. Step 6: Final answer
    x = 53,993.73

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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.