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Finding the Fourth Proportional to 144,640.62, 216,981.45 and 44,808.66

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Solution

The fourth proportional to 144,640.62, 216,981.45 and 44,808.66 is: 67,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,640.62 : 216,981.45 = 44,808.66 : x
  2. Step 2: Convert to fraction form
    144,640.62/216,981.45 = 44,808.66/x
  3. Step 3: Cross multiply
    144,640.62x = 216,981.45 × 44,808.66
  4. Step 4: Simplify right side
    144,640.62x = 9,722,648,019.36
  5. Step 5: Solve for x
    x = 9,722,648,019.36/144,640.62
  6. Step 6: Final answer
    x = 67,219.35

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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.