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Finding the Fourth Proportional to 170,142.28, 254,932.61 and 98,864.84

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Solution

The fourth proportional to 170,142.28, 254,932.61 and 98,864.84 is: 148,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,142.28 : 254,932.61 = 98,864.84 : x
  2. Step 2: Convert to fraction form
    170,142.28/254,932.61 = 98,864.84/x
  3. Step 3: Cross multiply
    170,142.28x = 254,932.61 × 98,864.84
  4. Step 4: Simplify right side
    170,142.28x = 25,203,871,841.44
  5. Step 5: Solve for x
    x = 25,203,871,841.44/170,142.28
  6. Step 6: Final answer
    x = 148,134.09

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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.