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Finding the Fourth Proportional to 123,713.34, 170,725.50 and 67,125.84

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Solution

The fourth proportional to 123,713.34, 170,725.50 and 67,125.84 is: 92,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,713.34 : 170,725.50 = 67,125.84 : x
  2. Step 2: Convert to fraction form
    123,713.34/170,725.50 = 67,125.84/x
  3. Step 3: Cross multiply
    123,713.34x = 170,725.50 × 67,125.84
  4. Step 4: Simplify right side
    123,713.34x = 11,460,092,596.92
  5. Step 5: Solve for x
    x = 11,460,092,596.92/123,713.34
  6. Step 6: Final answer
    x = 92,634.25

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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.