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Finding the Fourth Proportional to 162,855.29, 224,739.54 and 91,235.90

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Solution

The fourth proportional to 162,855.29, 224,739.54 and 91,235.90 is: 125,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,855.29 : 224,739.54 = 91,235.90 : x
  2. Step 2: Convert to fraction form
    162,855.29/224,739.54 = 91,235.90/x
  3. Step 3: Cross multiply
    162,855.29x = 224,739.54 × 91,235.90
  4. Step 4: Simplify right side
    162,855.29x = 20,504,313,073.79
  5. Step 5: Solve for x
    x = 20,504,313,073.79/162,855.29
  6. Step 6: Final answer
    x = 125,905.11

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1.5x scale

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.