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Finding the Fourth Proportional to 119,398.35, 164,767.97 and 65,680.17

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Solution

The fourth proportional to 119,398.35, 164,767.97 and 65,680.17 is: 90,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,398.35 : 164,767.97 = 65,680.17 : x
  2. Step 2: Convert to fraction form
    119,398.35/164,767.97 = 65,680.17/x
  3. Step 3: Cross multiply
    119,398.35x = 164,767.97 × 65,680.17
  4. Step 4: Simplify right side
    119,398.35x = 10,821,987,826.48
  5. Step 5: Solve for x
    x = 10,821,987,826.48/119,398.35
  6. Step 6: Final answer
    x = 90,637.66

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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.