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Finding the Fourth Proportional to 266,410.52, 399,606.56 and 66,732.62

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Solution

The fourth proportional to 266,410.52, 399,606.56 and 66,732.62 is: 100,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,410.52 : 399,606.56 = 66,732.62 : x
  2. Step 2: Convert to fraction form
    266,410.52/399,606.56 = 66,732.62/x
  3. Step 3: Cross multiply
    266,410.52x = 399,606.56 × 66,732.62
  4. Step 4: Simplify right side
    266,410.52x = 26,666,792,384.32
  5. Step 5: Solve for x
    x = 26,666,792,384.32/266,410.52
  6. Step 6: Final answer
    x = 100,096.62

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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.