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Finding the Fourth Proportional to 79,703.16, 110,020.18 and 52,854.66

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Solution

The fourth proportional to 79,703.16, 110,020.18 and 52,854.66 is: 72,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,703.16 : 110,020.18 = 52,854.66 : x
  2. Step 2: Convert to fraction form
    79,703.16/110,020.18 = 52,854.66/x
  3. Step 3: Cross multiply
    79,703.16x = 110,020.18 × 52,854.66
  4. Step 4: Simplify right side
    79,703.16x = 5,815,079,207.04
  5. Step 5: Solve for x
    x = 5,815,079,207.04/79,703.16
  6. Step 6: Final answer
    x = 72,959.21

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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.