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Finding the Fourth Proportional to 252,649.18, 348,653.73 and 139,469.50

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Solution

The fourth proportional to 252,649.18, 348,653.73 and 139,469.50 is: 192,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,649.18 : 348,653.73 = 139,469.50 : x
  2. Step 2: Convert to fraction form
    252,649.18/348,653.73 = 139,469.50/x
  3. Step 3: Cross multiply
    252,649.18x = 348,653.73 × 139,469.50
  4. Step 4: Simplify right side
    252,649.18x = 48,626,561,396.24
  5. Step 5: Solve for x
    x = 48,626,561,396.24/252,649.18
  6. Step 6: Final answer
    x = 192,466.73

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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.