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Finding the Fourth Proportional to 251,483.67, 347,018.38 and 144,047.30

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Solution

The fourth proportional to 251,483.67, 347,018.38 and 144,047.30 is: 198,768.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,483.67 : 347,018.38 = 144,047.30 : x
  2. Step 2: Convert to fraction form
    251,483.67/347,018.38 = 144,047.30/x
  3. Step 3: Cross multiply
    251,483.67x = 347,018.38 × 144,047.30
  4. Step 4: Simplify right side
    251,483.67x = 49,987,058,594.16
  5. Step 5: Solve for x
    x = 49,987,058,594.16/251,483.67
  6. Step 6: Final answer
    x = 198,768.61

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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.