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Finding the Fourth Proportional to 266,030.48, 367,129.90 and 145,179.60

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Solution

The fourth proportional to 266,030.48, 367,129.90 and 145,179.60 is: 200,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,030.48 : 367,129.90 = 145,179.60 : x
  2. Step 2: Convert to fraction form
    266,030.48/367,129.90 = 145,179.60/x
  3. Step 3: Cross multiply
    266,030.48x = 367,129.90 × 145,179.60
  4. Step 4: Simplify right side
    266,030.48x = 53,299,770,834.78
  5. Step 5: Solve for x
    x = 53,299,770,834.78/266,030.48
  6. Step 6: Final answer
    x = 200,352.12

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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.