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Finding the Fourth Proportional to 85,340.67, 117,770.13 and 47,614.92

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Solution

The fourth proportional to 85,340.67, 117,770.13 and 47,614.92 is: 65,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,340.67 : 117,770.13 = 47,614.92 : x
  2. Step 2: Convert to fraction form
    85,340.67/117,770.13 = 47,614.92/x
  3. Step 3: Cross multiply
    85,340.67x = 117,770.13 × 47,614.92
  4. Step 4: Simplify right side
    85,340.67x = 5,607,615,318.34
  5. Step 5: Solve for x
    x = 5,607,615,318.34/85,340.67
  6. Step 6: Final answer
    x = 65,708.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.