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Finding the Fourth Proportional to 120,397.86, 180,531.03 and 95,597.22

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Solution

The fourth proportional to 120,397.86, 180,531.03 and 95,597.22 is: 143,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,397.86 : 180,531.03 = 95,597.22 : x
  2. Step 2: Convert to fraction form
    120,397.86/180,531.03 = 95,597.22/x
  3. Step 3: Cross multiply
    120,397.86x = 180,531.03 × 95,597.22
  4. Step 4: Simplify right side
    120,397.86x = 17,258,264,591.74
  5. Step 5: Solve for x
    x = 17,258,264,591.74/120,397.86
  6. Step 6: Final answer
    x = 143,343.62

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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.