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Finding the Fourth Proportional to 95,989, 132,479.40 and 58,255.96

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Solution

The fourth proportional to 95,989, 132,479.40 and 58,255.96 is: 80,402.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,989 : 132,479.40 = 58,255.96 : x
  2. Step 2: Convert to fraction form
    95,989/132,479.40 = 58,255.96/x
  3. Step 3: Cross multiply
    95,989x = 132,479.40 × 58,255.96
  4. Step 4: Simplify right side
    95,989x = 7,717,714,627.22
  5. Step 5: Solve for x
    x = 7,717,714,627.22/95,989
  6. Step 6: Final answer
    x = 80,402.07

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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.