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Finding the Fourth Proportional to 372,850.74, 514,548.59 and 211,720.91

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Solution

The fourth proportional to 372,850.74, 514,548.59 and 211,720.91 is: 292,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,850.74 : 514,548.59 = 211,720.91 : x
  2. Step 2: Convert to fraction form
    372,850.74/514,548.59 = 211,720.91/x
  3. Step 3: Cross multiply
    372,850.74x = 514,548.59 × 211,720.91
  4. Step 4: Simplify right side
    372,850.74x = 108,940,692,082.67
  5. Step 5: Solve for x
    x = 108,940,692,082.67/372,850.74
  6. Step 6: Final answer
    x = 292,183.12

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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.