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Finding the Fourth Proportional to 207,346.52, 286,138.62 and 117,922.52

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Solution

The fourth proportional to 207,346.52, 286,138.62 and 117,922.52 is: 162,733.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,346.52 : 286,138.62 = 117,922.52 : x
  2. Step 2: Convert to fraction form
    207,346.52/286,138.62 = 117,922.52/x
  3. Step 3: Cross multiply
    207,346.52x = 286,138.62 × 117,922.52
  4. Step 4: Simplify right side
    207,346.52x = 33,742,187,139.72
  5. Step 5: Solve for x
    x = 33,742,187,139.72/207,346.52
  6. Step 6: Final answer
    x = 162,733.32

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Why These Related Problems?

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