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Finding the Fourth Proportional to 66,182, 99,230.45 and 43,666.66

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Solution

The fourth proportional to 66,182, 99,230.45 and 43,666.66 is: 65,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,182 : 99,230.45 = 43,666.66 : x
  2. Step 2: Convert to fraction form
    66,182/99,230.45 = 43,666.66/x
  3. Step 3: Cross multiply
    66,182x = 99,230.45 × 43,666.66
  4. Step 4: Simplify right side
    66,182x = 4,333,062,321.80
  5. Step 5: Solve for x
    x = 4,333,062,321.80/66,182
  6. Step 6: Final answer
    x = 65,471.92

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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.