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Finding the Fourth Proportional to 352,531.98, 528,272.90 and 194,805.54

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Solution

The fourth proportional to 352,531.98, 528,272.90 and 194,805.54 is: 291,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,531.98 : 528,272.90 = 194,805.54 : x
  2. Step 2: Convert to fraction form
    352,531.98/528,272.90 = 194,805.54/x
  3. Step 3: Cross multiply
    352,531.98x = 528,272.90 × 194,805.54
  4. Step 4: Simplify right side
    352,531.98x = 102,910,487,551.87
  5. Step 5: Solve for x
    x = 102,910,487,551.87/352,531.98
  6. Step 6: Final answer
    x = 291,918.16

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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.