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Finding the Fourth Proportional to 106,239.60, 159,366.60 and 36,124.20

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Solution

The fourth proportional to 106,239.60, 159,366.60 and 36,124.20 is: 54,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,239.60 : 159,366.60 = 36,124.20 : x
  2. Step 2: Convert to fraction form
    106,239.60/159,366.60 = 36,124.20/x
  3. Step 3: Cross multiply
    106,239.60x = 159,366.60 × 36,124.20
  4. Step 4: Simplify right side
    106,239.60x = 5,756,990,931.72
  5. Step 5: Solve for x
    x = 5,756,990,931.72/106,239.60
  6. Step 6: Final answer
    x = 54,188.75

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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.