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Finding the Fourth Proportional to 127,371.10, 191,251.05 and 97,822.30

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Solution

The fourth proportional to 127,371.10, 191,251.05 and 97,822.30 is: 146,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,371.10 : 191,251.05 = 97,822.30 : x
  2. Step 2: Convert to fraction form
    127,371.10/191,251.05 = 97,822.30/x
  3. Step 3: Cross multiply
    127,371.10x = 191,251.05 × 97,822.30
  4. Step 4: Simplify right side
    127,371.10x = 18,708,617,588.42
  5. Step 5: Solve for x
    x = 18,708,617,588.42/127,371.10
  6. Step 6: Final answer
    x = 146,882.75

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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.