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Finding the Fourth Proportional to 119,186.28, 164,480.76 and 65,470.32

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Solution

The fourth proportional to 119,186.28, 164,480.76 and 65,470.32 is: 90,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,186.28 : 164,480.76 = 65,470.32 : x
  2. Step 2: Convert to fraction form
    119,186.28/164,480.76 = 65,470.32/x
  3. Step 3: Cross multiply
    119,186.28x = 164,480.76 × 65,470.32
  4. Step 4: Simplify right side
    119,186.28x = 10,768,607,991.04
  5. Step 5: Solve for x
    x = 10,768,607,991.04/119,186.28
  6. Step 6: Final answer
    x = 90,351.07

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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.