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Finding the Fourth Proportional to 381,300.16, 571,997.91 and 115,060.24

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Solution

The fourth proportional to 381,300.16, 571,997.91 and 115,060.24 is: 172,604.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,300.16 : 571,997.91 = 115,060.24 : x
  2. Step 2: Convert to fraction form
    381,300.16/571,997.91 = 115,060.24/x
  3. Step 3: Cross multiply
    381,300.16x = 571,997.91 × 115,060.24
  4. Step 4: Simplify right side
    381,300.16x = 65,814,216,804.10
  5. Step 5: Solve for x
    x = 65,814,216,804.10/381,300.16
  6. Step 6: Final answer
    x = 172,604.74

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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.