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Finding the Fourth Proportional to 91,333.08, 136,905.64 and 43,876.92

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Solution

The fourth proportional to 91,333.08, 136,905.64 and 43,876.92 is: 65,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,333.08 : 136,905.64 = 43,876.92 : x
  2. Step 2: Convert to fraction form
    91,333.08/136,905.64 = 43,876.92/x
  3. Step 3: Cross multiply
    91,333.08x = 136,905.64 × 43,876.92
  4. Step 4: Simplify right side
    91,333.08x = 6,006,997,813.83
  5. Step 5: Solve for x
    x = 6,006,997,813.83/91,333.08
  6. Step 6: Final answer
    x = 65,770.23

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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.