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Finding the Fourth Proportional to 230,862.32, 318,595 and 127,496.20

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Solution

The fourth proportional to 230,862.32, 318,595 and 127,496.20 is: 175,947.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,862.32 : 318,595 = 127,496.20 : x
  2. Step 2: Convert to fraction form
    230,862.32/318,595 = 127,496.20/x
  3. Step 3: Cross multiply
    230,862.32x = 318,595 × 127,496.20
  4. Step 4: Simplify right side
    230,862.32x = 40,619,651,839
  5. Step 5: Solve for x
    x = 40,619,651,839/230,862.32
  6. Step 6: Final answer
    x = 175,947.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.