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Finding the Fourth Proportional to 120,367.53, 180,575.60 and 82,945.53

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Solution

The fourth proportional to 120,367.53, 180,575.60 and 82,945.53 is: 124,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,367.53 : 180,575.60 = 82,945.53 : x
  2. Step 2: Convert to fraction form
    120,367.53/180,575.60 = 82,945.53/x
  3. Step 3: Cross multiply
    120,367.53x = 180,575.60 × 82,945.53
  4. Step 4: Simplify right side
    120,367.53x = 14,977,938,432.34
  5. Step 5: Solve for x
    x = 14,977,938,432.34/120,367.53
  6. Step 6: Final answer
    x = 124,435.04

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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.