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Finding the Fourth Proportional to 159,432.40, 239,148.60 and 133,771.60

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Solution

The fourth proportional to 159,432.40, 239,148.60 and 133,771.60 is: 200,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,432.40 : 239,148.60 = 133,771.60 : x
  2. Step 2: Convert to fraction form
    159,432.40/239,148.60 = 133,771.60/x
  3. Step 3: Cross multiply
    159,432.40x = 239,148.60 × 133,771.60
  4. Step 4: Simplify right side
    159,432.40x = 31,991,290,859.76
  5. Step 5: Solve for x
    x = 31,991,290,859.76/159,432.40
  6. Step 6: Final answer
    x = 200,657.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.