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Finding the Fourth Proportional to 170,842.40, 256,263.60 and 133,517.60

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Solution

The fourth proportional to 170,842.40, 256,263.60 and 133,517.60 is: 200,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,842.40 : 256,263.60 = 133,517.60 : x
  2. Step 2: Convert to fraction form
    170,842.40/256,263.60 = 133,517.60/x
  3. Step 3: Cross multiply
    170,842.40x = 256,263.60 × 133,517.60
  4. Step 4: Simplify right side
    170,842.40x = 34,215,700,839.36
  5. Step 5: Solve for x
    x = 34,215,700,839.36/170,842.40
  6. Step 6: Final answer
    x = 200,276.40

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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.