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Finding the Fourth Proportional to 384,092.40, 576,311.40 and 134,953.20

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Solution

The fourth proportional to 384,092.40, 576,311.40 and 134,953.20 is: 202,490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,092.40 : 576,311.40 = 134,953.20 : x
  2. Step 2: Convert to fraction form
    384,092.40/576,311.40 = 134,953.20/x
  3. Step 3: Cross multiply
    384,092.40x = 576,311.40 × 134,953.20
  4. Step 4: Simplify right side
    384,092.40x = 77,775,067,626.48
  5. Step 5: Solve for x
    x = 77,775,067,626.48/384,092.40
  6. Step 6: Final answer
    x = 202,490.51

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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.