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Finding the Fourth Proportional to 220,695.50, 331,044.06 and 54,483.50

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Solution

The fourth proportional to 220,695.50, 331,044.06 and 54,483.50 is: 81,725.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,695.50 : 331,044.06 = 54,483.50 : x
  2. Step 2: Convert to fraction form
    220,695.50/331,044.06 = 54,483.50/x
  3. Step 3: Cross multiply
    220,695.50x = 331,044.06 × 54,483.50
  4. Step 4: Simplify right side
    220,695.50x = 18,036,439,043.01
  5. Step 5: Solve for x
    x = 18,036,439,043.01/220,695.50
  6. Step 6: Final answer
    x = 81,725.45

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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.