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Finding the Fourth Proportional to 266,471.34, 367,731.36 and 145,612.63

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Solution

The fourth proportional to 266,471.34, 367,731.36 and 145,612.63 is: 200,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,471.34 : 367,731.36 = 145,612.63 : x
  2. Step 2: Convert to fraction form
    266,471.34/367,731.36 = 145,612.63/x
  3. Step 3: Cross multiply
    266,471.34x = 367,731.36 × 145,612.63
  4. Step 4: Simplify right side
    266,471.34x = 53,546,330,089.80
  5. Step 5: Solve for x
    x = 53,546,330,089.80/266,471.34
  6. Step 6: Final answer
    x = 200,945.93

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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.