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Finding the Fourth Proportional to 214,957.80, 322,436.70 and 65,190.83

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Solution

The fourth proportional to 214,957.80, 322,436.70 and 65,190.83 is: 97,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,957.80 : 322,436.70 = 65,190.83 : x
  2. Step 2: Convert to fraction form
    214,957.80/322,436.70 = 65,190.83/x
  3. Step 3: Cross multiply
    214,957.80x = 322,436.70 × 65,190.83
  4. Step 4: Simplify right side
    214,957.80x = 21,019,914,483.28
  5. Step 5: Solve for x
    x = 21,019,914,483.28/214,957.80
  6. Step 6: Final answer
    x = 97,786.24

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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.