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Finding the Fourth Proportional to 114,553.90, 171,956.56 and 91,012.77

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Solution

The fourth proportional to 114,553.90, 171,956.56 and 91,012.77 is: 136,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,553.90 : 171,956.56 = 91,012.77 : x
  2. Step 2: Convert to fraction form
    114,553.90/171,956.56 = 91,012.77/x
  3. Step 3: Cross multiply
    114,553.90x = 171,956.56 × 91,012.77
  4. Step 4: Simplify right side
    114,553.90x = 15,650,242,845.27
  5. Step 5: Solve for x
    x = 15,650,242,845.27/114,553.90
  6. Step 6: Final answer
    x = 136,619.03

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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.