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Finding the Fourth Proportional to 338,871.48, 467,635.50 and 187,967.16

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Solution

The fourth proportional to 338,871.48, 467,635.50 and 187,967.16 is: 259,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,871.48 : 467,635.50 = 187,967.16 : x
  2. Step 2: Convert to fraction form
    338,871.48/467,635.50 = 187,967.16/x
  3. Step 3: Cross multiply
    338,871.48x = 467,635.50 × 187,967.16
  4. Step 4: Simplify right side
    338,871.48x = 87,900,116,850.18
  5. Step 5: Solve for x
    x = 87,900,116,850.18/338,871.48
  6. Step 6: Final answer
    x = 259,390.72

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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.