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Finding the Fourth Proportional to 119,108.16, 164,358.92 and 65,393.12

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Solution

The fourth proportional to 119,108.16, 164,358.92 and 65,393.12 is: 90,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,108.16 : 164,358.92 = 65,393.12 : x
  2. Step 2: Convert to fraction form
    119,108.16/164,358.92 = 65,393.12/x
  3. Step 3: Cross multiply
    119,108.16x = 164,358.92 × 65,393.12
  4. Step 4: Simplify right side
    119,108.16x = 10,747,942,578.63
  5. Step 5: Solve for x
    x = 10,747,942,578.63/119,108.16
  6. Step 6: Final answer
    x = 90,236.83

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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.