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Finding the Fourth Proportional to 134,378.68, 201,597.18 and 40,882

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Solution

The fourth proportional to 134,378.68, 201,597.18 and 40,882 is: 61,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,378.68 : 201,597.18 = 40,882 : x
  2. Step 2: Convert to fraction form
    134,378.68/201,597.18 = 40,882/x
  3. Step 3: Cross multiply
    134,378.68x = 201,597.18 × 40,882
  4. Step 4: Simplify right side
    134,378.68x = 8,241,695,912.76
  5. Step 5: Solve for x
    x = 8,241,695,912.76/134,378.68
  6. Step 6: Final answer
    x = 61,331.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.