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Finding the Fourth Proportional to 176,717.39, 264,883.28 and 86,821.97

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Solution

The fourth proportional to 176,717.39, 264,883.28 and 86,821.97 is: 130,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,717.39 : 264,883.28 = 86,821.97 : x
  2. Step 2: Convert to fraction form
    176,717.39/264,883.28 = 86,821.97/x
  3. Step 3: Cross multiply
    176,717.39x = 264,883.28 × 86,821.97
  4. Step 4: Simplify right side
    176,717.39x = 22,997,686,431.14
  5. Step 5: Solve for x
    x = 22,997,686,431.14/176,717.39
  6. Step 6: Final answer
    x = 130,138.22

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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.