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Finding the Fourth Proportional to 110,906.70, 153,019.17 and 65,562.90

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Solution

The fourth proportional to 110,906.70, 153,019.17 and 65,562.90 is: 90,457.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,906.70 : 153,019.17 = 65,562.90 : x
  2. Step 2: Convert to fraction form
    110,906.70/153,019.17 = 65,562.90/x
  3. Step 3: Cross multiply
    110,906.70x = 153,019.17 × 65,562.90
  4. Step 4: Simplify right side
    110,906.70x = 10,032,380,540.79
  5. Step 5: Solve for x
    x = 10,032,380,540.79/110,906.70
  6. Step 6: Final answer
    x = 90,457.84

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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.