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Finding the Fourth Proportional to 372,167.51, 513,575.51 and 211,033.40

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Solution

The fourth proportional to 372,167.51, 513,575.51 and 211,033.40 is: 291,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,167.51 : 513,575.51 = 211,033.40 : x
  2. Step 2: Convert to fraction form
    372,167.51/513,575.51 = 211,033.40/x
  3. Step 3: Cross multiply
    372,167.51x = 513,575.51 × 211,033.40
  4. Step 4: Simplify right side
    372,167.51x = 108,381,582,408.99
  5. Step 5: Solve for x
    x = 108,381,582,408.99/372,167.51
  6. Step 6: Final answer
    x = 291,217.21

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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.