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Finding the Fourth Proportional to 118,996.92, 164,226.12 and 65,292.28

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Solution

The fourth proportional to 118,996.92, 164,226.12 and 65,292.28 is: 90,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,996.92 : 164,226.12 = 65,292.28 : x
  2. Step 2: Convert to fraction form
    118,996.92/164,226.12 = 65,292.28/x
  3. Step 3: Cross multiply
    118,996.92x = 164,226.12 × 65,292.28
  4. Step 4: Simplify right side
    118,996.92x = 10,722,697,810.35
  5. Step 5: Solve for x
    x = 10,722,697,810.35/118,996.92
  6. Step 6: Final answer
    x = 90,109.04

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1.5x scale

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.