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Finding the Fourth Proportional to 83,333.80, 124,855.08 and 69,383.44

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Solution

The fourth proportional to 83,333.80, 124,855.08 and 69,383.44 is: 103,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,333.80 : 124,855.08 = 69,383.44 : x
  2. Step 2: Convert to fraction form
    83,333.80/124,855.08 = 69,383.44/x
  3. Step 3: Cross multiply
    83,333.80x = 124,855.08 × 69,383.44
  4. Step 4: Simplify right side
    83,333.80x = 8,662,874,951.88
  5. Step 5: Solve for x
    x = 8,662,874,951.88/83,333.80
  6. Step 6: Final answer
    x = 103,953.92

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1.5x scale

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.