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Finding the Fourth Proportional to 484,949.54, 727,424.33 and 147,991.95

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Solution

The fourth proportional to 484,949.54, 727,424.33 and 147,991.95 is: 221,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,949.54 : 727,424.33 = 147,991.95 : x
  2. Step 2: Convert to fraction form
    484,949.54/727,424.33 = 147,991.95/x
  3. Step 3: Cross multiply
    484,949.54x = 727,424.33 × 147,991.95
  4. Step 4: Simplify right side
    484,949.54x = 107,652,944,334.18
  5. Step 5: Solve for x
    x = 107,652,944,334.18/484,949.54
  6. Step 6: Final answer
    x = 221,987.93

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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.