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Finding the Fourth Proportional to 110,560, 165,865.92 and 36,688

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Solution

The fourth proportional to 110,560, 165,865.92 and 36,688 is: 55,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,560 : 165,865.92 = 36,688 : x
  2. Step 2: Convert to fraction form
    110,560/165,865.92 = 36,688/x
  3. Step 3: Cross multiply
    110,560x = 165,865.92 × 36,688
  4. Step 4: Simplify right side
    110,560x = 6,085,288,872.96
  5. Step 5: Solve for x
    x = 6,085,288,872.96/110,560
  6. Step 6: Final answer
    x = 55,040.60

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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.