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Finding the Fourth Proportional to 123,853.96, 170,918.76 and 67,264.12

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Solution

The fourth proportional to 123,853.96, 170,918.76 and 67,264.12 is: 92,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,853.96 : 170,918.76 = 67,264.12 : x
  2. Step 2: Convert to fraction form
    123,853.96/170,918.76 = 67,264.12/x
  3. Step 3: Cross multiply
    123,853.96x = 170,918.76 × 67,264.12
  4. Step 4: Simplify right side
    123,853.96x = 11,496,699,982.89
  5. Step 5: Solve for x
    x = 11,496,699,982.89/123,853.96
  6. Step 6: Final answer
    x = 92,824.65

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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.