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Finding the Fourth Proportional to 123,599.90, 170,568.24 and 67,011.32

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Solution

The fourth proportional to 123,599.90, 170,568.24 and 67,011.32 is: 92,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,599.90 : 170,568.24 = 67,011.32 : x
  2. Step 2: Convert to fraction form
    123,599.90/170,568.24 = 67,011.32/x
  3. Step 3: Cross multiply
    123,599.90x = 170,568.24 × 67,011.32
  4. Step 4: Simplify right side
    123,599.90x = 11,430,002,912.48
  5. Step 5: Solve for x
    x = 11,430,002,912.48/123,599.90
  6. Step 6: Final answer
    x = 92,475.83

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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.