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Finding the Fourth Proportional to 60,259.56, 90,388.50 and 18,706.56

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Solution

The fourth proportional to 60,259.56, 90,388.50 and 18,706.56 is: 28,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,259.56 : 90,388.50 = 18,706.56 : x
  2. Step 2: Convert to fraction form
    60,259.56/90,388.50 = 18,706.56/x
  3. Step 3: Cross multiply
    60,259.56x = 90,388.50 × 18,706.56
  4. Step 4: Simplify right side
    60,259.56x = 1,690,857,898.56
  5. Step 5: Solve for x
    x = 1,690,857,898.56/60,259.56
  6. Step 6: Final answer
    x = 28,059.58

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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.