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Finding the Fourth Proportional to 234,952.78, 352,468.96 and 81,036.98

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Solution

The fourth proportional to 234,952.78, 352,468.96 and 81,036.98 is: 121,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,952.78 : 352,468.96 = 81,036.98 : x
  2. Step 2: Convert to fraction form
    234,952.78/352,468.96 = 81,036.98/x
  3. Step 3: Cross multiply
    234,952.78x = 352,468.96 × 81,036.98
  4. Step 4: Simplify right side
    234,952.78x = 28,563,019,722.85
  5. Step 5: Solve for x
    x = 28,563,019,722.85/234,952.78
  6. Step 6: Final answer
    x = 121,569.19

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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.