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Finding the Fourth Proportional to 70,682.55, 106,059.69 and 47,006.57

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Solution

The fourth proportional to 70,682.55, 106,059.69 and 47,006.57 is: 70,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682.55 : 106,059.69 = 47,006.57 : x
  2. Step 2: Convert to fraction form
    70,682.55/106,059.69 = 47,006.57/x
  3. Step 3: Cross multiply
    70,682.55x = 106,059.69 × 47,006.57
  4. Step 4: Simplify right side
    70,682.55x = 4,985,501,711.86
  5. Step 5: Solve for x
    x = 4,985,501,711.86/70,682.55
  6. Step 6: Final answer
    x = 70,533.70

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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.