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Finding the Fourth Proportional to 266,183.55, 399,559.64 and 147,823.11

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Solution

The fourth proportional to 266,183.55, 399,559.64 and 147,823.11 is: 221,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,183.55 : 399,559.64 = 147,823.11 : x
  2. Step 2: Convert to fraction form
    266,183.55/399,559.64 = 147,823.11/x
  3. Step 3: Cross multiply
    266,183.55x = 399,559.64 × 147,823.11
  4. Step 4: Simplify right side
    266,183.55x = 59,064,147,876.16
  5. Step 5: Solve for x
    x = 59,064,147,876.16/266,183.55
  6. Step 6: Final answer
    x = 221,892.55

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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.