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Finding the Fourth Proportional to 91,137.87, 136,776.59 and 41,253.00

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Solution

The fourth proportional to 91,137.87, 136,776.59 and 41,253.00 is: 61,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,137.87 : 136,776.59 = 41,253.00 : x
  2. Step 2: Convert to fraction form
    91,137.87/136,776.59 = 41,253.00/x
  3. Step 3: Cross multiply
    91,137.87x = 136,776.59 × 41,253.00
  4. Step 4: Simplify right side
    91,137.87x = 5,642,444,631.98
  5. Step 5: Solve for x
    x = 5,642,444,631.98/91,137.87
  6. Step 6: Final answer
    x = 61,911.09

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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.