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Finding the Fourth Proportional to 170,253.60, 255,526.20 and 75,629.40

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Solution

The fourth proportional to 170,253.60, 255,526.20 and 75,629.40 is: 113,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,253.60 : 255,526.20 = 75,629.40 : x
  2. Step 2: Convert to fraction form
    170,253.60/255,526.20 = 75,629.40/x
  3. Step 3: Cross multiply
    170,253.60x = 255,526.20 × 75,629.40
  4. Step 4: Simplify right side
    170,253.60x = 19,325,293,190.28
  5. Step 5: Solve for x
    x = 19,325,293,190.28/170,253.60
  6. Step 6: Final answer
    x = 113,508.87

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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.