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Finding the Fourth Proportional to 79,373.32, 109,535.10 and 43,563.42

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Solution

The fourth proportional to 79,373.32, 109,535.10 and 43,563.42 is: 60,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,373.32 : 109,535.10 = 43,563.42 : x
  2. Step 2: Convert to fraction form
    79,373.32/109,535.10 = 43,563.42/x
  3. Step 3: Cross multiply
    79,373.32x = 109,535.10 × 43,563.42
  4. Step 4: Simplify right side
    79,373.32x = 4,771,723,566.04
  5. Step 5: Solve for x
    x = 4,771,723,566.04/79,373.32
  6. Step 6: Final answer
    x = 60,117.47

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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.