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Finding the Fourth Proportional to 266,225.30, 367,405.77 and 145,377.79

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Solution

The fourth proportional to 266,225.30, 367,405.77 and 145,377.79 is: 200,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,225.30 : 367,405.77 = 145,377.79 : x
  2. Step 2: Convert to fraction form
    266,225.30/367,405.77 = 145,377.79/x
  3. Step 3: Cross multiply
    266,225.30x = 367,405.77 × 145,377.79
  4. Step 4: Simplify right side
    266,225.30x = 53,412,638,502.50
  5. Step 5: Solve for x
    x = 53,412,638,502.50/266,225.30
  6. Step 6: Final answer
    x = 200,629.46

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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.