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Finding the Fourth Proportional to 69,710.36, 104,506.70 and 30,237.71

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Solution

The fourth proportional to 69,710.36, 104,506.70 and 30,237.71 is: 45,331.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,710.36 : 104,506.70 = 30,237.71 : x
  2. Step 2: Convert to fraction form
    69,710.36/104,506.70 = 30,237.71/x
  3. Step 3: Cross multiply
    69,710.36x = 104,506.70 × 30,237.71
  4. Step 4: Simplify right side
    69,710.36x = 3,160,042,613.93
  5. Step 5: Solve for x
    x = 3,160,042,613.93/69,710.36
  6. Step 6: Final answer
    x = 45,331.04

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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.