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Finding the Fourth Proportional to 79,702.15, 110,018.79 and 52,853.65

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Solution

The fourth proportional to 79,702.15, 110,018.79 and 52,853.65 is: 72,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,702.15 : 110,018.79 = 52,853.65 : x
  2. Step 2: Convert to fraction form
    79,702.15/110,018.79 = 52,853.65/x
  3. Step 3: Cross multiply
    79,702.15x = 110,018.79 × 52,853.65
  4. Step 4: Simplify right side
    79,702.15x = 5,814,894,620.08
  5. Step 5: Solve for x
    x = 5,814,894,620.08/79,702.15
  6. Step 6: Final answer
    x = 72,957.81

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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.