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Finding the Fourth Proportional to 163,497.29, 225,628.91 and 89,912.84

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Solution

The fourth proportional to 163,497.29, 225,628.91 and 89,912.84 is: 124,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,497.29 : 225,628.91 = 89,912.84 : x
  2. Step 2: Convert to fraction form
    163,497.29/225,628.91 = 89,912.84/x
  3. Step 3: Cross multiply
    163,497.29x = 225,628.91 × 89,912.84
  4. Step 4: Simplify right side
    163,497.29x = 20,286,934,843.67
  5. Step 5: Solve for x
    x = 20,286,934,843.67/163,497.29
  6. Step 6: Final answer
    x = 124,081.17

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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.