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Finding the Fourth Proportional to 123,694.80, 170,699.15 and 67,106.17

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Solution

The fourth proportional to 123,694.80, 170,699.15 and 67,106.17 is: 92,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,694.80 : 170,699.15 = 67,106.17 : x
  2. Step 2: Convert to fraction form
    123,694.80/170,699.15 = 67,106.17/x
  3. Step 3: Cross multiply
    123,694.80x = 170,699.15 × 67,106.17
  4. Step 4: Simplify right side
    123,694.80x = 11,454,966,371.16
  5. Step 5: Solve for x
    x = 11,454,966,371.16/123,694.80
  6. Step 6: Final answer
    x = 92,606.70

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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.