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Finding the Fourth Proportional to 70,422.52, 105,562.70 and 44,145.72

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Solution

The fourth proportional to 70,422.52, 105,562.70 and 44,145.72 is: 66,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,422.52 : 105,562.70 = 44,145.72 : x
  2. Step 2: Convert to fraction form
    70,422.52/105,562.70 = 44,145.72/x
  3. Step 3: Cross multiply
    70,422.52x = 105,562.70 × 44,145.72
  4. Step 4: Simplify right side
    70,422.52x = 4,660,140,868.83
  5. Step 5: Solve for x
    x = 4,660,140,868.83/70,422.52
  6. Step 6: Final answer
    x = 66,174.01

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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.