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Finding the Fourth Proportional to 372,505.50, 514,057.59 and 202,740.84

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Solution

The fourth proportional to 372,505.50, 514,057.59 and 202,740.84 is: 279,782.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,505.50 : 514,057.59 = 202,740.84 : x
  2. Step 2: Convert to fraction form
    372,505.50/514,057.59 = 202,740.84/x
  3. Step 3: Cross multiply
    372,505.50x = 514,057.59 × 202,740.84
  4. Step 4: Simplify right side
    372,505.50x = 104,220,467,604.98
  5. Step 5: Solve for x
    x = 104,220,467,604.98/372,505.50
  6. Step 6: Final answer
    x = 279,782.36

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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.