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Finding the Fourth Proportional to 172,692.36, 238,319.52 and 96,216.60

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Solution

The fourth proportional to 172,692.36, 238,319.52 and 96,216.60 is: 132,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,692.36 : 238,319.52 = 96,216.60 : x
  2. Step 2: Convert to fraction form
    172,692.36/238,319.52 = 96,216.60/x
  3. Step 3: Cross multiply
    172,692.36x = 238,319.52 × 96,216.60
  4. Step 4: Simplify right side
    172,692.36x = 22,930,293,928.03
  5. Step 5: Solve for x
    x = 22,930,293,928.03/172,692.36
  6. Step 6: Final answer
    x = 132,781.17

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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.