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Finding the Fourth Proportional to 70,415.91, 105,552.75 and 44,139.09

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Solution

The fourth proportional to 70,415.91, 105,552.75 and 44,139.09 is: 66,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,415.91 : 105,552.75 = 44,139.09 : x
  2. Step 2: Convert to fraction form
    70,415.91/105,552.75 = 44,139.09/x
  3. Step 3: Cross multiply
    70,415.91x = 105,552.75 × 44,139.09
  4. Step 4: Simplify right side
    70,415.91x = 4,659,002,332.00
  5. Step 5: Solve for x
    x = 4,659,002,332.00/70,415.91
  6. Step 6: Final answer
    x = 66,164.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.