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Finding the Fourth Proportional to 266,773.91, 368,159.78 and 153,633.11

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Solution

The fourth proportional to 266,773.91, 368,159.78 and 153,633.11 is: 212,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,773.91 : 368,159.78 = 153,633.11 : x
  2. Step 2: Convert to fraction form
    266,773.91/368,159.78 = 153,633.11/x
  3. Step 3: Cross multiply
    266,773.91x = 368,159.78 × 153,633.11
  4. Step 4: Simplify right side
    266,773.91x = 56,561,530,521.60
  5. Step 5: Solve for x
    x = 56,561,530,521.60/266,773.91
  6. Step 6: Final answer
    x = 212,020.48

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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.