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Finding the Fourth Proportional to 79,230.20, 109,337.67 and 45,696.20

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Solution

The fourth proportional to 79,230.20, 109,337.67 and 45,696.20 is: 63,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,230.20 : 109,337.67 = 45,696.20 : x
  2. Step 2: Convert to fraction form
    79,230.20/109,337.67 = 45,696.20/x
  3. Step 3: Cross multiply
    79,230.20x = 109,337.67 × 45,696.20
  4. Step 4: Simplify right side
    79,230.20x = 4,996,315,489.17
  5. Step 5: Solve for x
    x = 4,996,315,489.17/79,230.20
  6. Step 6: Final answer
    x = 63,060.75

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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.