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Finding the Fourth Proportional to 127,383.80, 191,027.10 and 38,607.80

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Solution

The fourth proportional to 127,383.80, 191,027.10 and 38,607.80 is: 57,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,383.80 : 191,027.10 = 38,607.80 : x
  2. Step 2: Convert to fraction form
    127,383.80/191,027.10 = 38,607.80/x
  3. Step 3: Cross multiply
    127,383.80x = 191,027.10 × 38,607.80
  4. Step 4: Simplify right side
    127,383.80x = 7,375,136,071.38
  5. Step 5: Solve for x
    x = 7,375,136,071.38/127,383.80
  6. Step 6: Final answer
    x = 57,896.97

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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.