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Finding the Fourth Proportional to 343,652.72, 474,243.33 and 190,691.51

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Solution

The fourth proportional to 343,652.72, 474,243.33 and 190,691.51 is: 263,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,652.72 : 474,243.33 = 190,691.51 : x
  2. Step 2: Convert to fraction form
    343,652.72/474,243.33 = 190,691.51/x
  3. Step 3: Cross multiply
    343,652.72x = 474,243.33 × 190,691.51
  4. Step 4: Simplify right side
    343,652.72x = 90,434,174,333.91
  5. Step 5: Solve for x
    x = 90,434,174,333.91/343,652.72
  6. Step 6: Final answer
    x = 263,155.71

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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.