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Finding the Fourth Proportional to 119,009.48, 164,227.30 and 68,724.68

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Solution

The fourth proportional to 119,009.48, 164,227.30 and 68,724.68 is: 94,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,009.48 : 164,227.30 = 68,724.68 : x
  2. Step 2: Convert to fraction form
    119,009.48/164,227.30 = 68,724.68/x
  3. Step 3: Cross multiply
    119,009.48x = 164,227.30 × 68,724.68
  4. Step 4: Simplify right side
    119,009.48x = 11,286,468,639.76
  5. Step 5: Solve for x
    x = 11,286,468,639.76/119,009.48
  6. Step 6: Final answer
    x = 94,836.72

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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.