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Finding the Fourth Proportional to 235,008.90, 352,557.99 and 77,282.82

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Solution

The fourth proportional to 235,008.90, 352,557.99 and 77,282.82 is: 115,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,008.90 : 352,557.99 = 77,282.82 : x
  2. Step 2: Convert to fraction form
    235,008.90/352,557.99 = 77,282.82/x
  3. Step 3: Cross multiply
    235,008.90x = 352,557.99 × 77,282.82
  4. Step 4: Simplify right side
    235,008.90x = 27,246,675,680.73
  5. Step 5: Solve for x
    x = 27,246,675,680.73/235,008.90
  6. Step 6: Final answer
    x = 115,938.91

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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.