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Finding the Fourth Proportional to 70,732.44, 105,923.70 and 44,357.22

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Solution

The fourth proportional to 70,732.44, 105,923.70 and 44,357.22 is: 66,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,732.44 : 105,923.70 = 44,357.22 : x
  2. Step 2: Convert to fraction form
    70,732.44/105,923.70 = 44,357.22/x
  3. Step 3: Cross multiply
    70,732.44x = 105,923.70 × 44,357.22
  4. Step 4: Simplify right side
    70,732.44x = 4,698,480,864.11
  5. Step 5: Solve for x
    x = 4,698,480,864.11/70,732.44
  6. Step 6: Final answer
    x = 66,426.11

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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.