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Finding the Fourth Proportional to 372,804.20, 514,475.66 and 203,038.19

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Solution

The fourth proportional to 372,804.20, 514,475.66 and 203,038.19 is: 280,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,804.20 : 514,475.66 = 203,038.19 : x
  2. Step 2: Convert to fraction form
    372,804.20/514,475.66 = 203,038.19/x
  3. Step 3: Cross multiply
    372,804.20x = 514,475.66 × 203,038.19
  4. Step 4: Simplify right side
    372,804.20x = 104,458,206,805.46
  5. Step 5: Solve for x
    x = 104,458,206,805.46/372,804.20
  6. Step 6: Final answer
    x = 280,195.90

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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.