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Finding the Fourth Proportional to 110,553.12, 152,619.39 and 65,244.87

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Solution

The fourth proportional to 110,553.12, 152,619.39 and 65,244.87 is: 90,071.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,553.12 : 152,619.39 = 65,244.87 : x
  2. Step 2: Convert to fraction form
    110,553.12/152,619.39 = 65,244.87/x
  3. Step 3: Cross multiply
    110,553.12x = 152,619.39 × 65,244.87
  4. Step 4: Simplify right side
    110,553.12x = 9,957,632,260.03
  5. Step 5: Solve for x
    x = 9,957,632,260.03/110,553.12
  6. Step 6: Final answer
    x = 90,071.02

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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.