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Finding the Fourth Proportional to 377,398.38, 566,079.07 and 140,722.55

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Solution

The fourth proportional to 377,398.38, 566,079.07 and 140,722.55 is: 211,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,398.38 : 566,079.07 = 140,722.55 : x
  2. Step 2: Convert to fraction form
    377,398.38/566,079.07 = 140,722.55/x
  3. Step 3: Cross multiply
    377,398.38x = 566,079.07 × 140,722.55
  4. Step 4: Simplify right side
    377,398.38x = 79,660,090,232.03
  5. Step 5: Solve for x
    x = 79,660,090,232.03/377,398.38
  6. Step 6: Final answer
    x = 211,076.93

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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.