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Finding the Fourth Proportional to 118,891.11, 164,070.90 and 65,177.22

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Solution

The fourth proportional to 118,891.11, 164,070.90 and 65,177.22 is: 89,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,891.11 : 164,070.90 = 65,177.22 : x
  2. Step 2: Convert to fraction form
    118,891.11/164,070.90 = 65,177.22/x
  3. Step 3: Cross multiply
    118,891.11x = 164,070.90 × 65,177.22
  4. Step 4: Simplify right side
    118,891.11x = 10,693,685,144.90
  5. Step 5: Solve for x
    x = 10,693,685,144.90/118,891.11
  6. Step 6: Final answer
    x = 89,945.20

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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.