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Finding the Fourth Proportional to 169,974.84, 234,555.30 and 98,349.78

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Solution

The fourth proportional to 169,974.84, 234,555.30 and 98,349.78 is: 135,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,974.84 : 234,555.30 = 98,349.78 : x
  2. Step 2: Convert to fraction form
    169,974.84/234,555.30 = 98,349.78/x
  3. Step 3: Cross multiply
    169,974.84x = 234,555.30 × 98,349.78
  4. Step 4: Simplify right side
    169,974.84x = 23,068,462,152.83
  5. Step 5: Solve for x
    x = 23,068,462,152.83/169,974.84
  6. Step 6: Final answer
    x = 135,716.92

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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.