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Finding the Fourth Proportional to 169,897.59, 234,453.69 and 93,416.61

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Solution

The fourth proportional to 169,897.59, 234,453.69 and 93,416.61 is: 128,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,897.59 : 234,453.69 = 93,416.61 : x
  2. Step 2: Convert to fraction form
    169,897.59/234,453.69 = 93,416.61/x
  3. Step 3: Cross multiply
    169,897.59x = 234,453.69 × 93,416.61
  4. Step 4: Simplify right side
    169,897.59x = 21,901,868,921.79
  5. Step 5: Solve for x
    x = 21,901,868,921.79/169,897.59
  6. Step 6: Final answer
    x = 128,912.18

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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.