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Finding the Fourth Proportional to 352,062.60, 528,093.90 and 258,750.60

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Solution

The fourth proportional to 352,062.60, 528,093.90 and 258,750.60 is: 388,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,062.60 : 528,093.90 = 258,750.60 : x
  2. Step 2: Convert to fraction form
    352,062.60/528,093.90 = 258,750.60/x
  3. Step 3: Cross multiply
    352,062.60x = 528,093.90 × 258,750.60
  4. Step 4: Simplify right side
    352,062.60x = 136,644,613,481.34
  5. Step 5: Solve for x
    x = 136,644,613,481.34/352,062.60
  6. Step 6: Final answer
    x = 388,125.90

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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.