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Finding the Fourth Proportional to 238,107.78, 328,603.50 and 157,395.33

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Solution

The fourth proportional to 238,107.78, 328,603.50 and 157,395.33 is: 217,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,107.78 : 328,603.50 = 157,395.33 : x
  2. Step 2: Convert to fraction form
    238,107.78/328,603.50 = 157,395.33/x
  3. Step 3: Cross multiply
    238,107.78x = 328,603.50 × 157,395.33
  4. Step 4: Simplify right side
    238,107.78x = 51,720,656,321.66
  5. Step 5: Solve for x
    x = 51,720,656,321.66/238,107.78
  6. Step 6: Final answer
    x = 217,215.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.