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Finding the Fourth Proportional to 116,692.67, 174,758.34 and 66,620.95

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Solution

The fourth proportional to 116,692.67, 174,758.34 and 66,620.95 is: 99,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,692.67 : 174,758.34 = 66,620.95 : x
  2. Step 2: Convert to fraction form
    116,692.67/174,758.34 = 66,620.95/x
  3. Step 3: Cross multiply
    116,692.67x = 174,758.34 × 66,620.95
  4. Step 4: Simplify right side
    116,692.67x = 11,642,566,444.16
  5. Step 5: Solve for x
    x = 11,642,566,444.16/116,692.67
  6. Step 6: Final answer
    x = 99,771.19

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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.