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Finding the Fourth Proportional to 144,450, 216,718.20 and 61,350.48

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Solution

The fourth proportional to 144,450, 216,718.20 and 61,350.48 is: 92,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,450 : 216,718.20 = 61,350.48 : x
  2. Step 2: Convert to fraction form
    144,450/216,718.20 = 61,350.48/x
  3. Step 3: Cross multiply
    144,450x = 216,718.20 × 61,350.48
  4. Step 4: Simplify right side
    144,450x = 13,295,765,594.74
  5. Step 5: Solve for x
    x = 13,295,765,594.74/144,450
  6. Step 6: Final answer
    x = 92,044.07

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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.