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Finding the Fourth Proportional to 372,573.42, 514,138.23 and 202,803.90

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Solution

The fourth proportional to 372,573.42, 514,138.23 and 202,803.90 is: 279,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,573.42 : 514,138.23 = 202,803.90 : x
  2. Step 2: Convert to fraction form
    372,573.42/514,138.23 = 202,803.90/x
  3. Step 3: Cross multiply
    372,573.42x = 514,138.23 × 202,803.90
  4. Step 4: Simplify right side
    372,573.42x = 104,269,238,183.10
  5. Step 5: Solve for x
    x = 104,269,238,183.10/372,573.42
  6. Step 6: Final answer
    x = 279,862.26

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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.