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Finding the Fourth Proportional to 453,542.80, 680,573.40 and 173,261.20

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Solution

The fourth proportional to 453,542.80, 680,573.40 and 173,261.20 is: 259,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,542.80 : 680,573.40 = 173,261.20 : x
  2. Step 2: Convert to fraction form
    453,542.80/680,573.40 = 173,261.20/x
  3. Step 3: Cross multiply
    453,542.80x = 680,573.40 × 173,261.20
  4. Step 4: Simplify right side
    453,542.80x = 117,916,963,972.08
  5. Step 5: Solve for x
    x = 117,916,963,972.08/453,542.80
  6. Step 6: Final answer
    x = 259,990.82

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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.