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Finding the Fourth Proportional to 127,850.67, 191,863.49 and 65,564.91

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Solution

The fourth proportional to 127,850.67, 191,863.49 and 65,564.91 is: 98,392.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,850.67 : 191,863.49 = 65,564.91 : x
  2. Step 2: Convert to fraction form
    127,850.67/191,863.49 = 65,564.91/x
  3. Step 3: Cross multiply
    127,850.67x = 191,863.49 × 65,564.91
  4. Step 4: Simplify right side
    127,850.67x = 12,579,512,126.31
  5. Step 5: Solve for x
    x = 12,579,512,126.31/127,850.67
  6. Step 6: Final answer
    x = 98,392.23

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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.