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Finding the Fourth Proportional to 339,209.58, 508,825.16 and 170,637.78

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Solution

The fourth proportional to 339,209.58, 508,825.16 and 170,637.78 is: 255,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,209.58 : 508,825.16 = 170,637.78 : x
  2. Step 2: Convert to fraction form
    339,209.58/508,825.16 = 170,637.78/x
  3. Step 3: Cross multiply
    339,209.58x = 508,825.16 × 170,637.78
  4. Step 4: Simplify right side
    339,209.58x = 86,824,795,710.54
  5. Step 5: Solve for x
    x = 86,824,795,710.54/339,209.58
  6. Step 6: Final answer
    x = 255,962.10

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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.