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Finding the Fourth Proportional to 339,680.55, 509,522.04 and 103,025.28

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Solution

The fourth proportional to 339,680.55, 509,522.04 and 103,025.28 is: 154,538.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,680.55 : 509,522.04 = 103,025.28 : x
  2. Step 2: Convert to fraction form
    339,680.55/509,522.04 = 103,025.28/x
  3. Step 3: Cross multiply
    339,680.55x = 509,522.04 × 103,025.28
  4. Step 4: Simplify right side
    339,680.55x = 52,493,650,837.17
  5. Step 5: Solve for x
    x = 52,493,650,837.17/339,680.55
  6. Step 6: Final answer
    x = 154,538.29

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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.