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Finding the Fourth Proportional to 83,692.64, 115,495.32 and 50,158.64

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Solution

The fourth proportional to 83,692.64, 115,495.32 and 50,158.64 is: 69,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,692.64 : 115,495.32 = 50,158.64 : x
  2. Step 2: Convert to fraction form
    83,692.64/115,495.32 = 50,158.64/x
  3. Step 3: Cross multiply
    83,692.64x = 115,495.32 × 50,158.64
  4. Step 4: Simplify right side
    83,692.64x = 5,793,088,177.56
  5. Step 5: Solve for x
    x = 5,793,088,177.56/83,692.64
  6. Step 6: Final answer
    x = 69,218.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.