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Finding the Fourth Proportional to 60,791.50, 91,048.74 and 49,681.54

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Solution

The fourth proportional to 60,791.50, 91,048.74 and 49,681.54 is: 74,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,791.50 : 91,048.74 = 49,681.54 : x
  2. Step 2: Convert to fraction form
    60,791.50/91,048.74 = 49,681.54/x
  3. Step 3: Cross multiply
    60,791.50x = 91,048.74 × 49,681.54
  4. Step 4: Simplify right side
    60,791.50x = 4,523,441,618.26
  5. Step 5: Solve for x
    x = 4,523,441,618.26/60,791.50
  6. Step 6: Final answer
    x = 74,409.11

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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.