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Finding the Fourth Proportional to 125,364.52, 188,009.34 and 66,167.56

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Solution

The fourth proportional to 125,364.52, 188,009.34 and 66,167.56 is: 99,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,364.52 : 188,009.34 = 66,167.56 : x
  2. Step 2: Convert to fraction form
    125,364.52/188,009.34 = 66,167.56/x
  3. Step 3: Cross multiply
    125,364.52x = 188,009.34 × 66,167.56
  4. Step 4: Simplify right side
    125,364.52x = 12,440,119,285.01
  5. Step 5: Solve for x
    x = 12,440,119,285.01/125,364.52
  6. Step 6: Final answer
    x = 99,231.58

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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.