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Finding the Fourth Proportional to 162,439.48, 224,173.47 and 90,819.48

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Solution

The fourth proportional to 162,439.48, 224,173.47 and 90,819.48 is: 125,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,439.48 : 224,173.47 = 90,819.48 : x
  2. Step 2: Convert to fraction form
    162,439.48/224,173.47 = 90,819.48/x
  3. Step 3: Cross multiply
    162,439.48x = 224,173.47 × 90,819.48
  4. Step 4: Simplify right side
    162,439.48x = 20,359,317,975.20
  5. Step 5: Solve for x
    x = 20,359,317,975.20/162,439.48
  6. Step 6: Final answer
    x = 125,334.79

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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.