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Finding the Fourth Proportional to 381,028.50, 525,699.30 and 237,871.44

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Solution

The fourth proportional to 381,028.50, 525,699.30 and 237,871.44 is: 328,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,028.50 : 525,699.30 = 237,871.44 : x
  2. Step 2: Convert to fraction form
    381,028.50/525,699.30 = 237,871.44/x
  3. Step 3: Cross multiply
    381,028.50x = 525,699.30 × 237,871.44
  4. Step 4: Simplify right side
    381,028.50x = 125,048,849,497.99
  5. Step 5: Solve for x
    x = 125,048,849,497.99/381,028.50
  6. Step 6: Final answer
    x = 328,187.65

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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.