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Finding the Fourth Proportional to 117,009.48, 175,449.36 and 54,645.96

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Solution

The fourth proportional to 117,009.48, 175,449.36 and 54,645.96 is: 81,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,009.48 : 175,449.36 = 54,645.96 : x
  2. Step 2: Convert to fraction form
    117,009.48/175,449.36 = 54,645.96/x
  3. Step 3: Cross multiply
    117,009.48x = 175,449.36 × 54,645.96
  4. Step 4: Simplify right side
    117,009.48x = 9,587,598,708.59
  5. Step 5: Solve for x
    x = 9,587,598,708.59/117,009.48
  6. Step 6: Final answer
    x = 81,938.65

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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.