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Finding the Fourth Proportional to 162,920.36, 224,817.83 and 91,286.54

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Solution

The fourth proportional to 162,920.36, 224,817.83 and 91,286.54 is: 125,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,920.36 : 224,817.83 = 91,286.54 : x
  2. Step 2: Convert to fraction form
    162,920.36/224,817.83 = 91,286.54/x
  3. Step 3: Cross multiply
    162,920.36x = 224,817.83 × 91,286.54
  4. Step 4: Simplify right side
    162,920.36x = 20,522,842,700.48
  5. Step 5: Solve for x
    x = 20,522,842,700.48/162,920.36
  6. Step 6: Final answer
    x = 125,968.56

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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.