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Finding the Fourth Proportional to 352,062.80, 528,094.20 and 211,749.20

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Solution

The fourth proportional to 352,062.80, 528,094.20 and 211,749.20 is: 317,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,062.80 : 528,094.20 = 211,749.20 : x
  2. Step 2: Convert to fraction form
    352,062.80/528,094.20 = 211,749.20/x
  3. Step 3: Cross multiply
    352,062.80x = 528,094.20 × 211,749.20
  4. Step 4: Simplify right side
    352,062.80x = 111,823,524,374.64
  5. Step 5: Solve for x
    x = 111,823,524,374.64/352,062.80
  6. Step 6: Final answer
    x = 317,623.80

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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.