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Finding the Fourth Proportional to 169,489.13, 233,894.35 and 93,009.50

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Solution

The fourth proportional to 169,489.13, 233,894.35 and 93,009.50 is: 128,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,489.13 : 233,894.35 = 93,009.50 : x
  2. Step 2: Convert to fraction form
    169,489.13/233,894.35 = 93,009.50/x
  3. Step 3: Cross multiply
    169,489.13x = 233,894.35 × 93,009.50
  4. Step 4: Simplify right side
    169,489.13x = 21,754,396,546.33
  5. Step 5: Solve for x
    x = 21,754,396,546.33/169,489.13
  6. Step 6: Final answer
    x = 128,352.75

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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.