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Finding the Fourth Proportional to 69,092.90, 103,639.35 and 60,928.10

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Solution

The fourth proportional to 69,092.90, 103,639.35 and 60,928.10 is: 91,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,092.90 : 103,639.35 = 60,928.10 : x
  2. Step 2: Convert to fraction form
    69,092.90/103,639.35 = 60,928.10/x
  3. Step 3: Cross multiply
    69,092.90x = 103,639.35 × 60,928.10
  4. Step 4: Simplify right side
    69,092.90x = 6,314,548,680.74
  5. Step 5: Solve for x
    x = 6,314,548,680.74/69,092.90
  6. Step 6: Final answer
    x = 91,392.15

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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.