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Finding the Fourth Proportional to 214,397.61, 321,642.85 and 64,625.37

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Solution

The fourth proportional to 214,397.61, 321,642.85 and 64,625.37 is: 96,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,397.61 : 321,642.85 = 64,625.37 : x
  2. Step 2: Convert to fraction form
    214,397.61/321,642.85 = 64,625.37/x
  3. Step 3: Cross multiply
    214,397.61x = 321,642.85 × 64,625.37
  4. Step 4: Simplify right side
    214,397.61x = 20,786,288,189.10
  5. Step 5: Solve for x
    x = 20,786,288,189.10/214,397.61
  6. Step 6: Final answer
    x = 96,952.05

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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.