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Finding the Fourth Proportional to 86,692.68, 119,588.00 and 70,577.33

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Solution

The fourth proportional to 86,692.68, 119,588.00 and 70,577.33 is: 97,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,692.68 : 119,588.00 = 70,577.33 : x
  2. Step 2: Convert to fraction form
    86,692.68/119,588.00 = 70,577.33/x
  3. Step 3: Cross multiply
    86,692.68x = 119,588.00 × 70,577.33
  4. Step 4: Simplify right side
    86,692.68x = 8,440,200,789.21
  5. Step 5: Solve for x
    x = 8,440,200,789.21/86,692.68
  6. Step 6: Final answer
    x = 97,357.71

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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.