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Finding the Fourth Proportional to 381,247.56, 526,184.46 and 211,536.36

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Solution

The fourth proportional to 381,247.56, 526,184.46 and 211,536.36 is: 291,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,247.56 : 526,184.46 = 211,536.36 : x
  2. Step 2: Convert to fraction form
    381,247.56/526,184.46 = 211,536.36/x
  3. Step 3: Cross multiply
    381,247.56x = 526,184.46 × 211,536.36
  4. Step 4: Simplify right side
    381,247.56x = 111,307,145,356.97
  5. Step 5: Solve for x
    x = 111,307,145,356.97/381,247.56
  6. Step 6: Final answer
    x = 291,955.04

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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.