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Finding the Fourth Proportional to 127,617.99, 191,371.47 and 38,850.71

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Solution

The fourth proportional to 127,617.99, 191,371.47 and 38,850.71 is: 58,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,617.99 : 191,371.47 = 38,850.71 : x
  2. Step 2: Convert to fraction form
    127,617.99/191,371.47 = 38,850.71/x
  3. Step 3: Cross multiply
    127,617.99x = 191,371.47 × 38,850.71
  4. Step 4: Simplify right side
    127,617.99x = 7,434,916,526.39
  5. Step 5: Solve for x
    x = 7,434,916,526.39/127,617.99
  6. Step 6: Final answer
    x = 58,259.16

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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.