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Finding the Fourth Proportional to 88,945.90, 133,094.85 and 65,617.90

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Solution

The fourth proportional to 88,945.90, 133,094.85 and 65,617.90 is: 98,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,945.90 : 133,094.85 = 65,617.90 : x
  2. Step 2: Convert to fraction form
    88,945.90/133,094.85 = 65,617.90/x
  3. Step 3: Cross multiply
    88,945.90x = 133,094.85 × 65,617.90
  4. Step 4: Simplify right side
    88,945.90x = 8,733,404,557.82
  5. Step 5: Solve for x
    x = 8,733,404,557.82/88,945.90
  6. Step 6: Final answer
    x = 98,187.83

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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.