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Finding the Fourth Proportional to 69,279.16, 95,582.58 and 42,393.64

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Solution

The fourth proportional to 69,279.16, 95,582.58 and 42,393.64 is: 58,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,279.16 : 95,582.58 = 42,393.64 : x
  2. Step 2: Convert to fraction form
    69,279.16/95,582.58 = 42,393.64/x
  3. Step 3: Cross multiply
    69,279.16x = 95,582.58 × 42,393.64
  4. Step 4: Simplify right side
    69,279.16x = 4,052,093,486.79
  5. Step 5: Solve for x
    x = 4,052,093,486.79/69,279.16
  6. Step 6: Final answer
    x = 58,489.36

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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.