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Finding the Fourth Proportional to 174,336.78, 261,505.18 and 121,848.78

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Solution

The fourth proportional to 174,336.78, 261,505.18 and 121,848.78 is: 182,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,336.78 : 261,505.18 = 121,848.78 : x
  2. Step 2: Convert to fraction form
    174,336.78/261,505.18 = 121,848.78/x
  3. Step 3: Cross multiply
    174,336.78x = 261,505.18 × 121,848.78
  4. Step 4: Simplify right side
    174,336.78x = 31,864,087,146.68
  5. Step 5: Solve for x
    x = 31,864,087,146.68/174,336.78
  6. Step 6: Final answer
    x = 182,773.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.