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Finding the Fourth Proportional to 79,084.68, 109,132.70 and 45,094.20

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Solution

The fourth proportional to 79,084.68, 109,132.70 and 45,094.20 is: 62,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,084.68 : 109,132.70 = 45,094.20 : x
  2. Step 2: Convert to fraction form
    79,084.68/109,132.70 = 45,094.20/x
  3. Step 3: Cross multiply
    79,084.68x = 109,132.70 × 45,094.20
  4. Step 4: Simplify right side
    79,084.68x = 4,921,251,800.34
  5. Step 5: Solve for x
    x = 4,921,251,800.34/79,084.68
  6. Step 6: Final answer
    x = 62,227.62

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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.