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Finding the Fourth Proportional to 193,606.92, 267,130.80 and 112,988.52

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Solution

The fourth proportional to 193,606.92, 267,130.80 and 112,988.52 is: 155,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,606.92 : 267,130.80 = 112,988.52 : x
  2. Step 2: Convert to fraction form
    193,606.92/267,130.80 = 112,988.52/x
  3. Step 3: Cross multiply
    193,606.92x = 267,130.80 × 112,988.52
  4. Step 4: Simplify right side
    193,606.92x = 30,182,713,738.42
  5. Step 5: Solve for x
    x = 30,182,713,738.42/193,606.92
  6. Step 6: Final answer
    x = 155,896.87

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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.