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Finding the Fourth Proportional to 162,361.20, 224,057.04 and 90,740.40

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Solution

The fourth proportional to 162,361.20, 224,057.04 and 90,740.40 is: 125,220.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,361.20 : 224,057.04 = 90,740.40 : x
  2. Step 2: Convert to fraction form
    162,361.20/224,057.04 = 90,740.40/x
  3. Step 3: Cross multiply
    162,361.20x = 224,057.04 × 90,740.40
  4. Step 4: Simplify right side
    162,361.20x = 20,331,025,432.42
  5. Step 5: Solve for x
    x = 20,331,025,432.42/162,361.20
  6. Step 6: Final answer
    x = 125,220.96

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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.