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Finding the Fourth Proportional to 79,236.69, 109,332.77 and 45,229.65

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Solution

The fourth proportional to 79,236.69, 109,332.77 and 45,229.65 is: 62,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,236.69 : 109,332.77 = 45,229.65 : x
  2. Step 2: Convert to fraction form
    79,236.69/109,332.77 = 45,229.65/x
  3. Step 3: Cross multiply
    79,236.69x = 109,332.77 × 45,229.65
  4. Step 4: Simplify right side
    79,236.69x = 4,945,082,694.48
  5. Step 5: Solve for x
    x = 4,945,082,694.48/79,236.69
  6. Step 6: Final answer
    x = 62,409.00

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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.