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Finding the Fourth Proportional to 69,689.06, 103,795.98 and 69,349.24

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Solution

The fourth proportional to 69,689.06, 103,795.98 and 69,349.24 is: 103,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689.06 : 103,795.98 = 69,349.24 : x
  2. Step 2: Convert to fraction form
    69,689.06/103,795.98 = 69,349.24/x
  3. Step 3: Cross multiply
    69,689.06x = 103,795.98 × 69,349.24
  4. Step 4: Simplify right side
    69,689.06x = 7,198,172,295.90
  5. Step 5: Solve for x
    x = 7,198,172,295.90/69,689.06
  6. Step 6: Final answer
    x = 103,289.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.