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Finding the Fourth Proportional to 214,567.39, 321,881.17 and 64,790.70

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Solution

The fourth proportional to 214,567.39, 321,881.17 and 64,790.70 is: 97,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,567.39 : 321,881.17 = 64,790.70 : x
  2. Step 2: Convert to fraction form
    214,567.39/321,881.17 = 64,790.70/x
  3. Step 3: Cross multiply
    214,567.39x = 321,881.17 × 64,790.70
  4. Step 4: Simplify right side
    214,567.39x = 20,854,906,321.12
  5. Step 5: Solve for x
    x = 20,854,906,321.12/214,567.39
  6. Step 6: Final answer
    x = 97,195.13

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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.