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Finding the Fourth Proportional to 340,880.77, 511,321.14 and 104,223.43

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Solution

The fourth proportional to 340,880.77, 511,321.14 and 104,223.43 is: 156,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,880.77 : 511,321.14 = 104,223.43 : x
  2. Step 2: Convert to fraction form
    340,880.77/511,321.14 = 104,223.43/x
  3. Step 3: Cross multiply
    340,880.77x = 511,321.14 × 104,223.43
  4. Step 4: Simplify right side
    340,880.77x = 53,291,643,042.31
  5. Step 5: Solve for x
    x = 53,291,643,042.31/340,880.77
  6. Step 6: Final answer
    x = 156,335.14

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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.