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Finding the Fourth Proportional to 372,472.92, 514,002.78 and 202,703.40

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Solution

The fourth proportional to 372,472.92, 514,002.78 and 202,703.40 is: 279,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,472.92 : 514,002.78 = 202,703.40 : x
  2. Step 2: Convert to fraction form
    372,472.92/514,002.78 = 202,703.40/x
  3. Step 3: Cross multiply
    372,472.92x = 514,002.78 × 202,703.40
  4. Step 4: Simplify right side
    372,472.92x = 104,190,111,115.45
  5. Step 5: Solve for x
    x = 104,190,111,115.45/372,472.92
  6. Step 6: Final answer
    x = 279,725.33

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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.