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Finding the Fourth Proportional to 135,487.26, 186,967.44 and 75,060.54

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Solution

The fourth proportional to 135,487.26, 186,967.44 and 75,060.54 is: 103,580.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,487.26 : 186,967.44 = 75,060.54 : x
  2. Step 2: Convert to fraction form
    135,487.26/186,967.44 = 75,060.54/x
  3. Step 3: Cross multiply
    135,487.26x = 186,967.44 × 75,060.54
  4. Step 4: Simplify right side
    135,487.26x = 14,033,877,008.82
  5. Step 5: Solve for x
    x = 14,033,877,008.82/135,487.26
  6. Step 6: Final answer
    x = 103,580.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.