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Finding the Fourth Proportional to 125,542.60, 188,317.02 and 36,786.76

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Solution

The fourth proportional to 125,542.60, 188,317.02 and 36,786.76 is: 55,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,542.60 : 188,317.02 = 36,786.76 : x
  2. Step 2: Convert to fraction form
    125,542.60/188,317.02 = 36,786.76/x
  3. Step 3: Cross multiply
    125,542.60x = 188,317.02 × 36,786.76
  4. Step 4: Simplify right side
    125,542.60x = 6,927,573,018.66
  5. Step 5: Solve for x
    x = 6,927,573,018.66/125,542.60
  6. Step 6: Final answer
    x = 55,181.05

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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.