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Finding the Fourth Proportional to 266,391, 367,619.58 and 147,159

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Solution

The fourth proportional to 266,391, 367,619.58 and 147,159 is: 203,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,391 : 367,619.58 = 147,159 : x
  2. Step 2: Convert to fraction form
    266,391/367,619.58 = 147,159/x
  3. Step 3: Cross multiply
    266,391x = 367,619.58 × 147,159
  4. Step 4: Simplify right side
    266,391x = 54,098,529,773.22
  5. Step 5: Solve for x
    x = 54,098,529,773.22/266,391
  6. Step 6: Final answer
    x = 203,079.42

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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.