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Finding the Fourth Proportional to 175,256.40, 262,884.60 and 86,523.60

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Solution

The fourth proportional to 175,256.40, 262,884.60 and 86,523.60 is: 129,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,256.40 : 262,884.60 = 86,523.60 : x
  2. Step 2: Convert to fraction form
    175,256.40/262,884.60 = 86,523.60/x
  3. Step 3: Cross multiply
    175,256.40x = 262,884.60 × 86,523.60
  4. Step 4: Simplify right side
    175,256.40x = 22,745,721,976.56
  5. Step 5: Solve for x
    x = 22,745,721,976.56/175,256.40
  6. Step 6: Final answer
    x = 129,785.40

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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.