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Finding the Fourth Proportional to 101,645.69, 140,294.45 and 67,655.52

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Solution

The fourth proportional to 101,645.69, 140,294.45 and 67,655.52 is: 93,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,645.69 : 140,294.45 = 67,655.52 : x
  2. Step 2: Convert to fraction form
    101,645.69/140,294.45 = 67,655.52/x
  3. Step 3: Cross multiply
    101,645.69x = 140,294.45 × 67,655.52
  4. Step 4: Simplify right side
    101,645.69x = 9,491,694,137.00
  5. Step 5: Solve for x
    x = 9,491,694,137.00/101,645.69
  6. Step 6: Final answer
    x = 93,380.20

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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.