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Finding the Fourth Proportional to 84,692.08, 116,581.74 and 73,201.76

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Solution

The fourth proportional to 84,692.08, 116,581.74 and 73,201.76 is: 100,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,692.08 : 116,581.74 = 73,201.76 : x
  2. Step 2: Convert to fraction form
    84,692.08/116,581.74 = 73,201.76/x
  3. Step 3: Cross multiply
    84,692.08x = 116,581.74 × 73,201.76
  4. Step 4: Simplify right side
    84,692.08x = 8,533,988,551.86
  5. Step 5: Solve for x
    x = 8,533,988,551.86/84,692.08
  6. Step 6: Final answer
    x = 100,764.90

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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.