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Finding the Fourth Proportional to 177,643.60, 266,076.60 and 154,315.60

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Solution

The fourth proportional to 177,643.60, 266,076.60 and 154,315.60 is: 231,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,643.60 : 266,076.60 = 154,315.60 : x
  2. Step 2: Convert to fraction form
    177,643.60/266,076.60 = 154,315.60/x
  3. Step 3: Cross multiply
    177,643.60x = 266,076.60 × 154,315.60
  4. Step 4: Simplify right side
    177,643.60x = 41,059,770,174.96
  5. Step 5: Solve for x
    x = 41,059,770,174.96/177,643.60
  6. Step 6: Final answer
    x = 231,135.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.