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Finding the Fourth Proportional to 116,934.32, 161,356.92 and 69,189.68

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Solution

The fourth proportional to 116,934.32, 161,356.92 and 69,189.68 is: 95,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,934.32 : 161,356.92 = 69,189.68 : x
  2. Step 2: Convert to fraction form
    116,934.32/161,356.92 = 69,189.68/x
  3. Step 3: Cross multiply
    116,934.32x = 161,356.92 × 69,189.68
  4. Step 4: Simplify right side
    116,934.32x = 11,164,233,660.59
  5. Step 5: Solve for x
    x = 11,164,233,660.59/116,934.32
  6. Step 6: Final answer
    x = 95,474.40

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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.