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Finding the Fourth Proportional to 214,661.15, 322,003.10 and 64,897.62

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Solution

The fourth proportional to 214,661.15, 322,003.10 and 64,897.62 is: 97,349.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,661.15 : 322,003.10 = 64,897.62 : x
  2. Step 2: Convert to fraction form
    214,661.15/322,003.10 = 64,897.62/x
  3. Step 3: Cross multiply
    214,661.15x = 322,003.10 × 64,897.62
  4. Step 4: Simplify right side
    214,661.15x = 20,897,234,984.87
  5. Step 5: Solve for x
    x = 20,897,234,984.87/214,661.15
  6. Step 6: Final answer
    x = 97,349.87

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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.