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Finding the Fourth Proportional to 325,492.56, 488,002.26 and 136,007.17

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Solution

The fourth proportional to 325,492.56, 488,002.26 and 136,007.17 is: 203,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,492.56 : 488,002.26 = 136,007.17 : x
  2. Step 2: Convert to fraction form
    325,492.56/488,002.26 = 136,007.17/x
  3. Step 3: Cross multiply
    325,492.56x = 488,002.26 × 136,007.17
  4. Step 4: Simplify right side
    325,492.56x = 66,371,805,626.23
  5. Step 5: Solve for x
    x = 66,371,805,626.23/325,492.56
  6. Step 6: Final answer
    x = 203,911.90

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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.