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Finding the Fourth Proportional to 69,917.49, 96,493.11 and 42,692.08

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Solution

The fourth proportional to 69,917.49, 96,493.11 and 42,692.08 is: 58,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,917.49 : 96,493.11 = 42,692.08 : x
  2. Step 2: Convert to fraction form
    69,917.49/96,493.11 = 42,692.08/x
  3. Step 3: Cross multiply
    69,917.49x = 96,493.11 × 42,692.08
  4. Step 4: Simplify right side
    69,917.49x = 4,119,490,875.64
  5. Step 5: Solve for x
    x = 4,119,490,875.64/69,917.49
  6. Step 6: Final answer
    x = 58,919.32

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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.