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Finding the Fourth Proportional to 125,999.63, 188,904.39 and 76,067.85

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Solution

The fourth proportional to 125,999.63, 188,904.39 and 76,067.85 is: 114,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,999.63 : 188,904.39 = 76,067.85 : x
  2. Step 2: Convert to fraction form
    125,999.63/188,904.39 = 76,067.85/x
  3. Step 3: Cross multiply
    125,999.63x = 188,904.39 × 76,067.85
  4. Step 4: Simplify right side
    125,999.63x = 14,369,551,226.00
  5. Step 5: Solve for x
    x = 14,369,551,226.00/125,999.63
  6. Step 6: Final answer
    x = 114,044.39

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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.