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Finding the Fourth Proportional to 207,329.52, 286,115.16 and 117,905.52

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Solution

The fourth proportional to 207,329.52, 286,115.16 and 117,905.52 is: 162,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,329.52 : 286,115.16 = 117,905.52 : x
  2. Step 2: Convert to fraction form
    207,329.52/286,115.16 = 117,905.52/x
  3. Step 3: Cross multiply
    207,329.52x = 286,115.16 × 117,905.52
  4. Step 4: Simplify right side
    207,329.52x = 33,734,556,719.68
  5. Step 5: Solve for x
    x = 33,734,556,719.68/207,329.52
  6. Step 6: Final answer
    x = 162,709.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.