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Finding the Fourth Proportional to 123,641.92, 170,625 and 67,053.26

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Solution

The fourth proportional to 123,641.92, 170,625 and 67,053.26 is: 92,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,641.92 : 170,625 = 67,053.26 : x
  2. Step 2: Convert to fraction form
    123,641.92/170,625 = 67,053.26/x
  3. Step 3: Cross multiply
    123,641.92x = 170,625 × 67,053.26
  4. Step 4: Simplify right side
    123,641.92x = 11,440,962,487.50
  5. Step 5: Solve for x
    x = 11,440,962,487.50/123,641.92
  6. Step 6: Final answer
    x = 92,533.04

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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.