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Finding the Fourth Proportional to 163,058.20, 244,295.70 and 137,980.60

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Solution

The fourth proportional to 163,058.20, 244,295.70 and 137,980.60 is: 206,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,058.20 : 244,295.70 = 137,980.60 : x
  2. Step 2: Convert to fraction form
    163,058.20/244,295.70 = 137,980.60/x
  3. Step 3: Cross multiply
    163,058.20x = 244,295.70 × 137,980.60
  4. Step 4: Simplify right side
    163,058.20x = 33,708,067,263.42
  5. Step 5: Solve for x
    x = 33,708,067,263.42/163,058.20
  6. Step 6: Final answer
    x = 206,724.15

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1.5x scale

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.