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Finding the Fourth Proportional to 69,680.69, 104,985.91 and 63,024.87

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Solution

The fourth proportional to 69,680.69, 104,985.91 and 63,024.87 is: 94,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,680.69 : 104,985.91 = 63,024.87 : x
  2. Step 2: Convert to fraction form
    69,680.69/104,985.91 = 63,024.87/x
  3. Step 3: Cross multiply
    69,680.69x = 104,985.91 × 63,024.87
  4. Step 4: Simplify right side
    69,680.69x = 6,616,723,329.58
  5. Step 5: Solve for x
    x = 6,616,723,329.58/69,680.69
  6. Step 6: Final answer
    x = 94,957.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.