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Finding the Fourth Proportional to 322,943.21, 484,100.54 and 154,420.01

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Solution

The fourth proportional to 322,943.21, 484,100.54 and 154,420.01 is: 231,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,943.21 : 484,100.54 = 154,420.01 : x
  2. Step 2: Convert to fraction form
    322,943.21/484,100.54 = 154,420.01/x
  3. Step 3: Cross multiply
    322,943.21x = 484,100.54 × 154,420.01
  4. Step 4: Simplify right side
    322,943.21x = 74,754,809,455.71
  5. Step 5: Solve for x
    x = 74,754,809,455.71/322,943.21
  6. Step 6: Final answer
    x = 231,479.74

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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.