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Finding the Fourth Proportional to 352,548.60, 528,045.30 and 212,062.20

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Solution

The fourth proportional to 352,548.60, 528,045.30 and 212,062.20 is: 317,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,548.60 : 528,045.30 = 212,062.20 : x
  2. Step 2: Convert to fraction form
    352,548.60/528,045.30 = 212,062.20/x
  3. Step 3: Cross multiply
    352,548.60x = 528,045.30 × 212,062.20
  4. Step 4: Simplify right side
    352,548.60x = 111,978,448,017.66
  5. Step 5: Solve for x
    x = 111,978,448,017.66/352,548.60
  6. Step 6: Final answer
    x = 317,625.56

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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.