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Finding the Fourth Proportional to 168,240.65, 232,163.87 and 100,256.11

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Solution

The fourth proportional to 168,240.65, 232,163.87 and 100,256.11 is: 138,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,240.65 : 232,163.87 = 100,256.11 : x
  2. Step 2: Convert to fraction form
    168,240.65/232,163.87 = 100,256.11/x
  3. Step 3: Cross multiply
    168,240.65x = 232,163.87 × 100,256.11
  4. Step 4: Simplify right side
    168,240.65x = 23,275,845,407.06
  5. Step 5: Solve for x
    x = 23,275,845,407.06/168,240.65
  6. Step 6: Final answer
    x = 138,348.53

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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.