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Finding the Fourth Proportional to 144,469.36, 216,410.28 and 117,910

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Solution

The fourth proportional to 144,469.36, 216,410.28 and 117,910 is: 176,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,469.36 : 216,410.28 = 117,910 : x
  2. Step 2: Convert to fraction form
    144,469.36/216,410.28 = 117,910/x
  3. Step 3: Cross multiply
    144,469.36x = 216,410.28 × 117,910
  4. Step 4: Simplify right side
    144,469.36x = 25,516,936,114.80
  5. Step 5: Solve for x
    x = 25,516,936,114.80/144,469.36
  6. Step 6: Final answer
    x = 176,625.25

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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.