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Finding the Fourth Proportional to 69,785.66, 104,812.80 and 59,812.94

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Solution

The fourth proportional to 69,785.66, 104,812.80 and 59,812.94 is: 89,834.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,785.66 : 104,812.80 = 59,812.94 : x
  2. Step 2: Convert to fraction form
    69,785.66/104,812.80 = 59,812.94/x
  3. Step 3: Cross multiply
    69,785.66x = 104,812.80 × 59,812.94
  4. Step 4: Simplify right side
    69,785.66x = 6,269,161,717.63
  5. Step 5: Solve for x
    x = 6,269,161,717.63/69,785.66
  6. Step 6: Final answer
    x = 89,834.53

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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.