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Finding the Fourth Proportional to 70,052.59, 105,150.37 and 51,276.86

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Solution

The fourth proportional to 70,052.59, 105,150.37 and 51,276.86 is: 76,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,052.59 : 105,150.37 = 51,276.86 : x
  2. Step 2: Convert to fraction form
    70,052.59/105,150.37 = 51,276.86/x
  3. Step 3: Cross multiply
    70,052.59x = 105,150.37 × 51,276.86
  4. Step 4: Simplify right side
    70,052.59x = 5,391,780,801.44
  5. Step 5: Solve for x
    x = 5,391,780,801.44/70,052.59
  6. Step 6: Final answer
    x = 76,967.62

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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.