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Finding the Fourth Proportional to 109,767.10, 164,650.65 and 108,600.70

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Solution

The fourth proportional to 109,767.10, 164,650.65 and 108,600.70 is: 162,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,767.10 : 164,650.65 = 108,600.70 : x
  2. Step 2: Convert to fraction form
    109,767.10/164,650.65 = 108,600.70/x
  3. Step 3: Cross multiply
    109,767.10x = 164,650.65 × 108,600.70
  4. Step 4: Simplify right side
    109,767.10x = 17,881,175,845.46
  5. Step 5: Solve for x
    x = 17,881,175,845.46/109,767.10
  6. Step 6: Final answer
    x = 162,901.05

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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.