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Finding the Fourth Proportional to 342,820.82, 472,935.72 and 222,001.03

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Solution

The fourth proportional to 342,820.82, 472,935.72 and 222,001.03 is: 306,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,820.82 : 472,935.72 = 222,001.03 : x
  2. Step 2: Convert to fraction form
    342,820.82/472,935.72 = 222,001.03/x
  3. Step 3: Cross multiply
    342,820.82x = 472,935.72 × 222,001.03
  4. Step 4: Simplify right side
    342,820.82x = 104,992,216,963.79
  5. Step 5: Solve for x
    x = 104,992,216,963.79/342,820.82
  6. Step 6: Final answer
    x = 306,259.75

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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.