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Finding the Fourth Proportional to 266,372, 367,593.36 and 147,140

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Solution

The fourth proportional to 266,372, 367,593.36 and 147,140 is: 203,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,372 : 367,593.36 = 147,140 : x
  2. Step 2: Convert to fraction form
    266,372/367,593.36 = 147,140/x
  3. Step 3: Cross multiply
    266,372x = 367,593.36 × 147,140
  4. Step 4: Simplify right side
    266,372x = 54,087,686,990.40
  5. Step 5: Solve for x
    x = 54,087,686,990.40/266,372
  6. Step 6: Final answer
    x = 203,053.20

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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.