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Finding the Fourth Proportional to 325,930.85, 488,875.28 and 112,692.95

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Solution

The fourth proportional to 325,930.85, 488,875.28 and 112,692.95 is: 169,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,930.85 : 488,875.28 = 112,692.95 : x
  2. Step 2: Convert to fraction form
    325,930.85/488,875.28 = 112,692.95/x
  3. Step 3: Cross multiply
    325,930.85x = 488,875.28 × 112,692.95
  4. Step 4: Simplify right side
    325,930.85x = 55,092,794,477.43
  5. Step 5: Solve for x
    x = 55,092,794,477.43/325,930.85
  6. Step 6: Final answer
    x = 169,032.16

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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.