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Finding the Fourth Proportional to 70,717.36, 106,077.48 and 56,611.92

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Solution

The fourth proportional to 70,717.36, 106,077.48 and 56,611.92 is: 84,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,717.36 : 106,077.48 = 56,611.92 : x
  2. Step 2: Convert to fraction form
    70,717.36/106,077.48 = 56,611.92/x
  3. Step 3: Cross multiply
    70,717.36x = 106,077.48 × 56,611.92
  4. Step 4: Simplify right side
    70,717.36x = 6,005,249,811.56
  5. Step 5: Solve for x
    x = 6,005,249,811.56/70,717.36
  6. Step 6: Final answer
    x = 84,919.03

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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.