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Finding the Fourth Proportional to 484,348.90, 726,550.68 and 147,400.54

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Solution

The fourth proportional to 484,348.90, 726,550.68 and 147,400.54 is: 221,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,348.90 : 726,550.68 = 147,400.54 : x
  2. Step 2: Convert to fraction form
    484,348.90/726,550.68 = 147,400.54/x
  3. Step 3: Cross multiply
    484,348.90x = 726,550.68 × 147,400.54
  4. Step 4: Simplify right side
    484,348.90x = 107,093,962,569.37
  5. Step 5: Solve for x
    x = 107,093,962,569.37/484,348.90
  6. Step 6: Final answer
    x = 221,109.13

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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.