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Finding the Fourth Proportional to 79,764.32, 110,073.48 and 47,521.52

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Solution

The fourth proportional to 79,764.32, 110,073.48 and 47,521.52 is: 65,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,764.32 : 110,073.48 = 47,521.52 : x
  2. Step 2: Convert to fraction form
    79,764.32/110,073.48 = 47,521.52/x
  3. Step 3: Cross multiply
    79,764.32x = 110,073.48 × 47,521.52
  4. Step 4: Simplify right side
    79,764.32x = 5,230,859,081.29
  5. Step 5: Solve for x
    x = 5,230,859,081.29/79,764.32
  6. Step 6: Final answer
    x = 65,578.93

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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.