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Finding the Fourth Proportional to 372,876.91, 514,570.13 and 203,111.03

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Solution

The fourth proportional to 372,876.91, 514,570.13 and 203,111.03 is: 280,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,876.91 : 514,570.13 = 203,111.03 : x
  2. Step 2: Convert to fraction form
    372,876.91/514,570.13 = 203,111.03/x
  3. Step 3: Cross multiply
    372,876.91x = 514,570.13 × 203,111.03
  4. Step 4: Simplify right side
    372,876.91x = 104,514,869,111.53
  5. Step 5: Solve for x
    x = 104,514,869,111.53/372,876.91
  6. Step 6: Final answer
    x = 280,293.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.