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Finding the Fourth Proportional to 214,904.80, 322,357.20 and 165,752.80

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Solution

The fourth proportional to 214,904.80, 322,357.20 and 165,752.80 is: 248,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,904.80 : 322,357.20 = 165,752.80 : x
  2. Step 2: Convert to fraction form
    214,904.80/322,357.20 = 165,752.80/x
  3. Step 3: Cross multiply
    214,904.80x = 322,357.20 × 165,752.80
  4. Step 4: Simplify right side
    214,904.80x = 53,431,608,500.16
  5. Step 5: Solve for x
    x = 53,431,608,500.16/214,904.80
  6. Step 6: Final answer
    x = 248,629.20

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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.