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Finding the Fourth Proportional to 79,416.88, 109,595.29 and 45,882.88

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Solution

The fourth proportional to 79,416.88, 109,595.29 and 45,882.88 is: 63,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,416.88 : 109,595.29 = 45,882.88 : x
  2. Step 2: Convert to fraction form
    79,416.88/109,595.29 = 45,882.88/x
  3. Step 3: Cross multiply
    79,416.88x = 109,595.29 × 45,882.88
  4. Step 4: Simplify right side
    79,416.88x = 5,028,546,991.66
  5. Step 5: Solve for x
    x = 5,028,546,991.66/79,416.88
  6. Step 6: Final answer
    x = 63,318.37

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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.