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Finding the Fourth Proportional to 100,262.64, 138,544.92 and 95,404.08

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Solution

The fourth proportional to 100,262.64, 138,544.92 and 95,404.08 is: 131,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,262.64 : 138,544.92 = 95,404.08 : x
  2. Step 2: Convert to fraction form
    100,262.64/138,544.92 = 95,404.08/x
  3. Step 3: Cross multiply
    100,262.64x = 138,544.92 × 95,404.08
  4. Step 4: Simplify right side
    100,262.64x = 13,217,750,631.27
  5. Step 5: Solve for x
    x = 13,217,750,631.27/100,262.64
  6. Step 6: Final answer
    x = 131,831.26

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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.