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Finding the Fourth Proportional to 372,347.94, 558,521.94 and 172,642.05

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Solution

The fourth proportional to 372,347.94, 558,521.94 and 172,642.05 is: 258,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,347.94 : 558,521.94 = 172,642.05 : x
  2. Step 2: Convert to fraction form
    372,347.94/558,521.94 = 172,642.05/x
  3. Step 3: Cross multiply
    372,347.94x = 558,521.94 × 172,642.05
  4. Step 4: Simplify right side
    372,347.94x = 96,424,372,691.58
  5. Step 5: Solve for x
    x = 96,424,372,691.58/372,347.94
  6. Step 6: Final answer
    x = 258,963.09

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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.