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Finding the Fourth Proportional to 239,042.50, 329,878.65 and 133,058.50

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Solution

The fourth proportional to 239,042.50, 329,878.65 and 133,058.50 is: 183,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,042.50 : 329,878.65 = 133,058.50 : x
  2. Step 2: Convert to fraction form
    239,042.50/329,878.65 = 133,058.50/x
  3. Step 3: Cross multiply
    239,042.50x = 329,878.65 × 133,058.50
  4. Step 4: Simplify right side
    239,042.50x = 43,893,158,351.03
  5. Step 5: Solve for x
    x = 43,893,158,351.03/239,042.50
  6. Step 6: Final answer
    x = 183,620.73

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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.