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Finding the Fourth Proportional to 119,710.43, 165,199.06 and 68,724.38

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Solution

The fourth proportional to 119,710.43, 165,199.06 and 68,724.38 is: 94,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,710.43 : 165,199.06 = 68,724.38 : x
  2. Step 2: Convert to fraction form
    119,710.43/165,199.06 = 68,724.38/x
  3. Step 3: Cross multiply
    119,710.43x = 165,199.06 × 68,724.38
  4. Step 4: Simplify right side
    119,710.43x = 11,353,202,975.08
  5. Step 5: Solve for x
    x = 11,353,202,975.08/119,710.43
  6. Step 6: Final answer
    x = 94,838.88

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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.