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Finding the Fourth Proportional to 113,666.78, 170,524.78 and 43,546.09

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Solution

The fourth proportional to 113,666.78, 170,524.78 and 43,546.09 is: 65,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,666.78 : 170,524.78 = 43,546.09 : x
  2. Step 2: Convert to fraction form
    113,666.78/170,524.78 = 43,546.09/x
  3. Step 3: Cross multiply
    113,666.78x = 170,524.78 × 43,546.09
  4. Step 4: Simplify right side
    113,666.78x = 7,425,687,417.11
  5. Step 5: Solve for x
    x = 7,425,687,417.11/113,666.78
  6. Step 6: Final answer
    x = 65,328.56

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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.