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Finding the Fourth Proportional to 123,622.91, 170,598.76 and 67,034.28

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Solution

The fourth proportional to 123,622.91, 170,598.76 and 67,034.28 is: 92,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,622.91 : 170,598.76 = 67,034.28 : x
  2. Step 2: Convert to fraction form
    123,622.91/170,598.76 = 67,034.28/x
  3. Step 3: Cross multiply
    123,622.91x = 170,598.76 × 67,034.28
  4. Step 4: Simplify right side
    123,622.91x = 11,435,965,517.65
  5. Step 5: Solve for x
    x = 11,435,965,517.65/123,622.91
  6. Step 6: Final answer
    x = 92,506.85

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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.