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Finding the Fourth Proportional to 89,085.22, 133,652.43 and 79,292.93

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Solution

The fourth proportional to 89,085.22, 133,652.43 and 79,292.93 is: 118,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,085.22 : 133,652.43 = 79,292.93 : x
  2. Step 2: Convert to fraction form
    89,085.22/133,652.43 = 79,292.93/x
  3. Step 3: Cross multiply
    89,085.22x = 133,652.43 × 79,292.93
  4. Step 4: Simplify right side
    89,085.22x = 10,597,692,108.06
  5. Step 5: Solve for x
    x = 10,597,692,108.06/89,085.22
  6. Step 6: Final answer
    x = 118,961.29

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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.