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Finding the Fourth Proportional to 266,135.76, 367,140 and 180,124.80

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Solution

The fourth proportional to 266,135.76, 367,140 and 180,124.80 is: 248,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,135.76 : 367,140 = 180,124.80 : x
  2. Step 2: Convert to fraction form
    266,135.76/367,140 = 180,124.80/x
  3. Step 3: Cross multiply
    266,135.76x = 367,140 × 180,124.80
  4. Step 4: Simplify right side
    266,135.76x = 66,131,019,072.00
  5. Step 5: Solve for x
    x = 66,131,019,072.00/266,135.76
  6. Step 6: Final answer
    x = 248,486.03

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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.