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Finding the Fourth Proportional to 69,442.57, 104,168.76 and 34,372.81

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Solution

The fourth proportional to 69,442.57, 104,168.76 and 34,372.81 is: 51,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,442.57 : 104,168.76 = 34,372.81 : x
  2. Step 2: Convert to fraction form
    69,442.57/104,168.76 = 34,372.81/x
  3. Step 3: Cross multiply
    69,442.57x = 104,168.76 × 34,372.81
  4. Step 4: Simplify right side
    69,442.57x = 3,580,572,302.71
  5. Step 5: Solve for x
    x = 3,580,572,302.71/69,442.57
  6. Step 6: Final answer
    x = 51,561.64

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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.