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Finding the Fourth Proportional to 237,542.88, 327,805.14 and 128,646.30

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Solution

The fourth proportional to 237,542.88, 327,805.14 and 128,646.30 is: 177,529.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,542.88 : 327,805.14 = 128,646.30 : x
  2. Step 2: Convert to fraction form
    237,542.88/327,805.14 = 128,646.30/x
  3. Step 3: Cross multiply
    237,542.88x = 327,805.14 × 128,646.30
  4. Step 4: Simplify right side
    237,542.88x = 42,170,918,381.98
  5. Step 5: Solve for x
    x = 42,170,918,381.98/237,542.88
  6. Step 6: Final answer
    x = 177,529.71

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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.