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Finding the Fourth Proportional to 125,208.80, 188,060.15 and 107,583.40

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Solution

The fourth proportional to 125,208.80, 188,060.15 and 107,583.40 is: 161,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208.80 : 188,060.15 = 107,583.40 : x
  2. Step 2: Convert to fraction form
    125,208.80/188,060.15 = 107,583.40/x
  3. Step 3: Cross multiply
    125,208.80x = 188,060.15 × 107,583.40
  4. Step 4: Simplify right side
    125,208.80x = 20,232,150,845.54
  5. Step 5: Solve for x
    x = 20,232,150,845.54/125,208.80
  6. Step 6: Final answer
    x = 161,587.29

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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.