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Finding the Fourth Proportional to 135,673.82, 187,217.52 and 75,244.30

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Solution

The fourth proportional to 135,673.82, 187,217.52 and 75,244.30 is: 103,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,673.82 : 187,217.52 = 75,244.30 : x
  2. Step 2: Convert to fraction form
    135,673.82/187,217.52 = 75,244.30/x
  3. Step 3: Cross multiply
    135,673.82x = 187,217.52 × 75,244.30
  4. Step 4: Simplify right side
    135,673.82x = 14,087,051,240.14
  5. Step 5: Solve for x
    x = 14,087,051,240.14/135,673.82
  6. Step 6: Final answer
    x = 103,830.28

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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.