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Finding the Fourth Proportional to 69,203.79, 94,878.31 and 67,942.62

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Solution

The fourth proportional to 69,203.79, 94,878.31 and 67,942.62 is: 93,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,203.79 : 94,878.31 = 67,942.62 : x
  2. Step 2: Convert to fraction form
    69,203.79/94,878.31 = 67,942.62/x
  3. Step 3: Cross multiply
    69,203.79x = 94,878.31 × 67,942.62
  4. Step 4: Simplify right side
    69,203.79x = 6,446,280,488.18
  5. Step 5: Solve for x
    x = 6,446,280,488.18/69,203.79
  6. Step 6: Final answer
    x = 93,149.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.