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Finding the Fourth Proportional to 162,957.28, 224,890 and 91,360.32

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Solution

The fourth proportional to 162,957.28, 224,890 and 91,360.32 is: 126,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,957.28 : 224,890 = 91,360.32 : x
  2. Step 2: Convert to fraction form
    162,957.28/224,890 = 91,360.32/x
  3. Step 3: Cross multiply
    162,957.28x = 224,890 × 91,360.32
  4. Step 4: Simplify right side
    162,957.28x = 20,546,022,364.80
  5. Step 5: Solve for x
    x = 20,546,022,364.80/162,957.28
  6. Step 6: Final answer
    x = 126,082.26

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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.