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Finding the Fourth Proportional to 135,999.52, 187,675.30 and 75,568.68

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Solution

The fourth proportional to 135,999.52, 187,675.30 and 75,568.68 is: 104,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,999.52 : 187,675.30 = 75,568.68 : x
  2. Step 2: Convert to fraction form
    135,999.52/187,675.30 = 75,568.68/x
  3. Step 3: Cross multiply
    135,999.52x = 187,675.30 × 75,568.68
  4. Step 4: Simplify right side
    135,999.52x = 14,182,374,689.60
  5. Step 5: Solve for x
    x = 14,182,374,689.60/135,999.52
  6. Step 6: Final answer
    x = 104,282.53

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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.