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Finding the Fourth Proportional to 70,671.88, 105,818.46 and 37,322.92

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Solution

The fourth proportional to 70,671.88, 105,818.46 and 37,322.92 is: 55,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,671.88 : 105,818.46 = 37,322.92 : x
  2. Step 2: Convert to fraction form
    70,671.88/105,818.46 = 37,322.92/x
  3. Step 3: Cross multiply
    70,671.88x = 105,818.46 × 37,322.92
  4. Step 4: Simplify right side
    70,671.88x = 3,949,453,917.10
  5. Step 5: Solve for x
    x = 3,949,453,917.10/70,671.88
  6. Step 6: Final answer
    x = 55,884.38

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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.