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Finding the Fourth Proportional to 381,170.01, 526,001.27 and 211,419.93

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Solution

The fourth proportional to 381,170.01, 526,001.27 and 211,419.93 is: 291,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,170.01 : 526,001.27 = 211,419.93 : x
  2. Step 2: Convert to fraction form
    381,170.01/526,001.27 = 211,419.93/x
  3. Step 3: Cross multiply
    381,170.01x = 526,001.27 × 211,419.93
  4. Step 4: Simplify right side
    381,170.01x = 111,207,150,626.21
  5. Step 5: Solve for x
    x = 111,207,150,626.21/381,170.01
  6. Step 6: Final answer
    x = 291,752.10

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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.