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Finding the Fourth Proportional to 252,778.16, 348,816.30 and 139,592

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Solution

The fourth proportional to 252,778.16, 348,816.30 and 139,592 is: 192,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,778.16 : 348,816.30 = 139,592 : x
  2. Step 2: Convert to fraction form
    252,778.16/348,816.30 = 139,592/x
  3. Step 3: Cross multiply
    252,778.16x = 348,816.30 × 139,592
  4. Step 4: Simplify right side
    252,778.16x = 48,691,964,949.60
  5. Step 5: Solve for x
    x = 48,691,964,949.60/252,778.16
  6. Step 6: Final answer
    x = 192,627.26

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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.