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Finding the Fourth Proportional to 85,230.72, 127,902.96 and 29,826.72

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Solution

The fourth proportional to 85,230.72, 127,902.96 and 29,826.72 is: 44,759.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,230.72 : 127,902.96 = 29,826.72 : x
  2. Step 2: Convert to fraction form
    85,230.72/127,902.96 = 29,826.72/x
  3. Step 3: Cross multiply
    85,230.72x = 127,902.96 × 29,826.72
  4. Step 4: Simplify right side
    85,230.72x = 3,814,925,775.09
  5. Step 5: Solve for x
    x = 3,814,925,775.09/85,230.72
  6. Step 6: Final answer
    x = 44,759.99

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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.