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Finding the Fourth Proportional to 123,589.86, 170,555.13 and 67,001.37

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Solution

The fourth proportional to 123,589.86, 170,555.13 and 67,001.37 is: 92,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,589.86 : 170,555.13 = 67,001.37 : x
  2. Step 2: Convert to fraction form
    123,589.86/170,555.13 = 67,001.37/x
  3. Step 3: Cross multiply
    123,589.86x = 170,555.13 × 67,001.37
  4. Step 4: Simplify right side
    123,589.86x = 11,427,427,370.53
  5. Step 5: Solve for x
    x = 11,427,427,370.53/123,589.86
  6. Step 6: Final answer
    x = 92,462.50

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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.