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Finding the Fourth Proportional to 266,531.59, 367,813.61 and 145,672.84

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Solution

The fourth proportional to 266,531.59, 367,813.61 and 145,672.84 is: 201,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,531.59 : 367,813.61 = 145,672.84 : x
  2. Step 2: Convert to fraction form
    266,531.59/367,813.61 = 145,672.84/x
  3. Step 3: Cross multiply
    266,531.59x = 367,813.61 × 145,672.84
  4. Step 4: Simplify right side
    266,531.59x = 53,580,452,057.73
  5. Step 5: Solve for x
    x = 53,580,452,057.73/266,531.59
  6. Step 6: Final answer
    x = 201,028.53

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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.