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Finding the Fourth Proportional to 170,259.60, 255,535.20 and 75,635.40

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Solution

The fourth proportional to 170,259.60, 255,535.20 and 75,635.40 is: 113,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,259.60 : 255,535.20 = 75,635.40 : x
  2. Step 2: Convert to fraction form
    170,259.60/255,535.20 = 75,635.40/x
  3. Step 3: Cross multiply
    170,259.60x = 255,535.20 × 75,635.40
  4. Step 4: Simplify right side
    170,259.60x = 19,327,507,066.08
  5. Step 5: Solve for x
    x = 19,327,507,066.08/170,259.60
  6. Step 6: Final answer
    x = 113,517.87

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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.