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Finding the Fourth Proportional to 248,602.75, 372,904.13 and 82,390.75

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Solution

The fourth proportional to 248,602.75, 372,904.13 and 82,390.75 is: 123,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,602.75 : 372,904.13 = 82,390.75 : x
  2. Step 2: Convert to fraction form
    248,602.75/372,904.13 = 82,390.75/x
  3. Step 3: Cross multiply
    248,602.75x = 372,904.13 × 82,390.75
  4. Step 4: Simplify right side
    248,602.75x = 30,723,850,948.80
  5. Step 5: Solve for x
    x = 30,723,850,948.80/248,602.75
  6. Step 6: Final answer
    x = 123,586.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.