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Finding the Fourth Proportional to 151,243.80, 226,865.70 and 127,624.20

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Solution

The fourth proportional to 151,243.80, 226,865.70 and 127,624.20 is: 191,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,243.80 : 226,865.70 = 127,624.20 : x
  2. Step 2: Convert to fraction form
    151,243.80/226,865.70 = 127,624.20/x
  3. Step 3: Cross multiply
    151,243.80x = 226,865.70 × 127,624.20
  4. Step 4: Simplify right side
    151,243.80x = 28,953,553,469.94
  5. Step 5: Solve for x
    x = 28,953,553,469.94/151,243.80
  6. Step 6: Final answer
    x = 191,436.30

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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.