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Finding the Fourth Proportional to 266,042.81, 367,146.82 and 145,191.89

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Solution

The fourth proportional to 266,042.81, 367,146.82 and 145,191.89 is: 200,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,042.81 : 367,146.82 = 145,191.89 : x
  2. Step 2: Convert to fraction form
    266,042.81/367,146.82 = 145,191.89/x
  3. Step 3: Cross multiply
    266,042.81x = 367,146.82 × 145,191.89
  4. Step 4: Simplify right side
    266,042.81x = 53,306,739,737.45
  5. Step 5: Solve for x
    x = 53,306,739,737.45/266,042.81
  6. Step 6: Final answer
    x = 200,369.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.