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Finding the Fourth Proportional to 144,610.70, 217,434.45 and 121,801.10

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Solution

The fourth proportional to 144,610.70, 217,434.45 and 121,801.10 is: 183,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,610.70 : 217,434.45 = 121,801.10 : x
  2. Step 2: Convert to fraction form
    144,610.70/217,434.45 = 121,801.10/x
  3. Step 3: Cross multiply
    144,610.70x = 217,434.45 × 121,801.10
  4. Step 4: Simplify right side
    144,610.70x = 26,483,755,187.90
  5. Step 5: Solve for x
    x = 26,483,755,187.90/144,610.70
  6. Step 6: Final answer
    x = 183,138.28

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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.