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Finding the Fourth Proportional to 85,166.68, 127,765.42 and 35,219.66

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Solution

The fourth proportional to 85,166.68, 127,765.42 and 35,219.66 is: 52,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,166.68 : 127,765.42 = 35,219.66 : x
  2. Step 2: Convert to fraction form
    85,166.68/127,765.42 = 35,219.66/x
  3. Step 3: Cross multiply
    85,166.68x = 127,765.42 × 35,219.66
  4. Step 4: Simplify right side
    85,166.68x = 4,499,854,652.16
  5. Step 5: Solve for x
    x = 4,499,854,652.16/85,166.68
  6. Step 6: Final answer
    x = 52,835.86

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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.