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Finding the Fourth Proportional to 352,716.54, 528,963.03 and 115,995.66

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Solution

The fourth proportional to 352,716.54, 528,963.03 and 115,995.66 is: 173,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,716.54 : 528,963.03 = 115,995.66 : x
  2. Step 2: Convert to fraction form
    352,716.54/528,963.03 = 115,995.66/x
  3. Step 3: Cross multiply
    352,716.54x = 528,963.03 × 115,995.66
  4. Step 4: Simplify right side
    352,716.54x = 61,357,415,780.45
  5. Step 5: Solve for x
    x = 61,357,415,780.45/352,716.54
  6. Step 6: Final answer
    x = 173,956.73

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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.