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Finding the Fourth Proportional to 91,307.77, 136,992.79 and 49,192.17

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Solution

The fourth proportional to 91,307.77, 136,992.79 and 49,192.17 is: 73,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,307.77 : 136,992.79 = 49,192.17 : x
  2. Step 2: Convert to fraction form
    91,307.77/136,992.79 = 49,192.17/x
  3. Step 3: Cross multiply
    91,307.77x = 136,992.79 × 49,192.17
  4. Step 4: Simplify right side
    91,307.77x = 6,738,972,614.45
  5. Step 5: Solve for x
    x = 6,738,972,614.45/91,307.77
  6. Step 6: Final answer
    x = 73,805.03

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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.