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Finding the Fourth Proportional to 325,332.96, 488,024.40 and 112,013.28

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Solution

The fourth proportional to 325,332.96, 488,024.40 and 112,013.28 is: 168,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,332.96 : 488,024.40 = 112,013.28 : x
  2. Step 2: Convert to fraction form
    325,332.96/488,024.40 = 112,013.28/x
  3. Step 3: Cross multiply
    325,332.96x = 488,024.40 × 112,013.28
  4. Step 4: Simplify right side
    325,332.96x = 54,665,213,764.03
  5. Step 5: Solve for x
    x = 54,665,213,764.03/325,332.96
  6. Step 6: Final answer
    x = 168,028.51

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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.