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Finding the Fourth Proportional to 73,220.88, 109,831.31 and 17,816.88

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Solution

The fourth proportional to 73,220.88, 109,831.31 and 17,816.88 is: 26,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,220.88 : 109,831.31 = 17,816.88 : x
  2. Step 2: Convert to fraction form
    73,220.88/109,831.31 = 17,816.88/x
  3. Step 3: Cross multiply
    73,220.88x = 109,831.31 × 17,816.88
  4. Step 4: Simplify right side
    73,220.88x = 1,956,850,765.90
  5. Step 5: Solve for x
    x = 1,956,850,765.90/73,220.88
  6. Step 6: Final answer
    x = 26,725.31

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.