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Finding the Fourth Proportional to 90,896.95, 136,299.79 and 52,958.48

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Solution

The fourth proportional to 90,896.95, 136,299.79 and 52,958.48 is: 79,411.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,896.95 : 136,299.79 = 52,958.48 : x
  2. Step 2: Convert to fraction form
    90,896.95/136,299.79 = 52,958.48/x
  3. Step 3: Cross multiply
    90,896.95x = 136,299.79 × 52,958.48
  4. Step 4: Simplify right side
    90,896.95x = 7,218,229,702.72
  5. Step 5: Solve for x
    x = 7,218,229,702.72/90,896.95
  6. Step 6: Final answer
    x = 79,411.13

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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.