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Finding the Fourth Proportional to 118,903.38, 164,086.62 and 65,187.26

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Solution

The fourth proportional to 118,903.38, 164,086.62 and 65,187.26 is: 89,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,903.38 : 164,086.62 = 65,187.26 : x
  2. Step 2: Convert to fraction form
    118,903.38/164,086.62 = 65,187.26/x
  3. Step 3: Cross multiply
    118,903.38x = 164,086.62 × 65,187.26
  4. Step 4: Simplify right side
    118,903.38x = 10,696,357,160.46
  5. Step 5: Solve for x
    x = 10,696,357,160.46/118,903.38
  6. Step 6: Final answer
    x = 89,958.39

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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.