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Finding the Fourth Proportional to 69,723.40, 104,469.90 and 59,355.40

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Solution

The fourth proportional to 69,723.40, 104,469.90 and 59,355.40 is: 88,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,723.40 : 104,469.90 = 59,355.40 : x
  2. Step 2: Convert to fraction form
    69,723.40/104,469.90 = 59,355.40/x
  3. Step 3: Cross multiply
    69,723.40x = 104,469.90 × 59,355.40
  4. Step 4: Simplify right side
    69,723.40x = 6,200,852,702.46
  5. Step 5: Solve for x
    x = 6,200,852,702.46/69,723.40
  6. Step 6: Final answer
    x = 88,935.03

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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.