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Finding the Fourth Proportional to 79,472.85, 109,675.08 and 43,663.65

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Solution

The fourth proportional to 79,472.85, 109,675.08 and 43,663.65 is: 60,257.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,472.85 : 109,675.08 = 43,663.65 : x
  2. Step 2: Convert to fraction form
    79,472.85/109,675.08 = 43,663.65/x
  3. Step 3: Cross multiply
    79,472.85x = 109,675.08 × 43,663.65
  4. Step 4: Simplify right side
    79,472.85x = 4,788,814,306.84
  5. Step 5: Solve for x
    x = 4,788,814,306.84/79,472.85
  6. Step 6: Final answer
    x = 60,257.24

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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.