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Finding the Fourth Proportional to 227,807.70, 341,711.55 and 127,971.15

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Solution

The fourth proportional to 227,807.70, 341,711.55 and 127,971.15 is: 191,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,807.70 : 341,711.55 = 127,971.15 : x
  2. Step 2: Convert to fraction form
    227,807.70/341,711.55 = 127,971.15/x
  3. Step 3: Cross multiply
    227,807.70x = 341,711.55 × 127,971.15
  4. Step 4: Simplify right side
    227,807.70x = 43,729,220,021.78
  5. Step 5: Solve for x
    x = 43,729,220,021.78/227,807.70
  6. Step 6: Final answer
    x = 191,956.73

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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.