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Finding the Fourth Proportional to 339,292.83, 508,963.56 and 102,653.97

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Solution

The fourth proportional to 339,292.83, 508,963.56 and 102,653.97 is: 153,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,292.83 : 508,963.56 = 102,653.97 : x
  2. Step 2: Convert to fraction form
    339,292.83/508,963.56 = 102,653.97/x
  3. Step 3: Cross multiply
    339,292.83x = 508,963.56 × 102,653.97
  4. Step 4: Simplify right side
    339,292.83x = 52,247,130,019.33
  5. Step 5: Solve for x
    x = 52,247,130,019.33/339,292.83
  6. Step 6: Final answer
    x = 153,988.31

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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.