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Finding the Fourth Proportional to 162,659.98, 224,470.74 and 91,040

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Solution

The fourth proportional to 162,659.98, 224,470.74 and 91,040 is: 125,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,659.98 : 224,470.74 = 91,040 : x
  2. Step 2: Convert to fraction form
    162,659.98/224,470.74 = 91,040/x
  3. Step 3: Cross multiply
    162,659.98x = 224,470.74 × 91,040
  4. Step 4: Simplify right side
    162,659.98x = 20,435,816,169.60
  5. Step 5: Solve for x
    x = 20,435,816,169.60/162,659.98
  6. Step 6: Final answer
    x = 125,635.18

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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.