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Finding the Fourth Proportional to 234,878.33, 324,216.14 and 139,385.00

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Solution

The fourth proportional to 234,878.33, 324,216.14 and 139,385.00 is: 192,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,878.33 : 324,216.14 = 139,385.00 : x
  2. Step 2: Convert to fraction form
    234,878.33/324,216.14 = 139,385.00/x
  3. Step 3: Cross multiply
    234,878.33x = 324,216.14 × 139,385.00
  4. Step 4: Simplify right side
    234,878.33x = 45,190,864,355.89
  5. Step 5: Solve for x
    x = 45,190,864,355.89/234,878.33
  6. Step 6: Final answer
    x = 192,401.17

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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.