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Finding the Fourth Proportional to 120,274.88, 165,788.12 and 94,740.79

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Solution

The fourth proportional to 120,274.88, 165,788.12 and 94,740.79 is: 130,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,274.88 : 165,788.12 = 94,740.79 : x
  2. Step 2: Convert to fraction form
    120,274.88/165,788.12 = 94,740.79/x
  3. Step 3: Cross multiply
    120,274.88x = 165,788.12 × 94,740.79
  4. Step 4: Simplify right side
    120,274.88x = 15,706,897,061.73
  5. Step 5: Solve for x
    x = 15,706,897,061.73/120,274.88
  6. Step 6: Final answer
    x = 130,591.67

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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.