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Finding the Fourth Proportional to 481,684.64, 722,560.08 and 144,711.20

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Solution

The fourth proportional to 481,684.64, 722,560.08 and 144,711.20 is: 217,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,684.64 : 722,560.08 = 144,711.20 : x
  2. Step 2: Convert to fraction form
    481,684.64/722,560.08 = 144,711.20/x
  3. Step 3: Cross multiply
    481,684.64x = 722,560.08 × 144,711.20
  4. Step 4: Simplify right side
    481,684.64x = 104,562,536,248.90
  5. Step 5: Solve for x
    x = 104,562,536,248.90/481,684.64
  6. Step 6: Final answer
    x = 217,076.75

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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.