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Finding the Fourth Proportional to 270,728.60, 373,609.87 and 148,218.91

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Solution

The fourth proportional to 270,728.60, 373,609.87 and 148,218.91 is: 204,544.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,728.60 : 373,609.87 = 148,218.91 : x
  2. Step 2: Convert to fraction form
    270,728.60/373,609.87 = 148,218.91/x
  3. Step 3: Cross multiply
    270,728.60x = 373,609.87 × 148,218.91
  4. Step 4: Simplify right side
    270,728.60x = 55,376,047,696.64
  5. Step 5: Solve for x
    x = 55,376,047,696.64/270,728.60
  6. Step 6: Final answer
    x = 204,544.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.