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Finding the Fourth Proportional to 70,957.64, 106,436.46 and 39,352.76

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Solution

The fourth proportional to 70,957.64, 106,436.46 and 39,352.76 is: 59,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,957.64 : 106,436.46 = 39,352.76 : x
  2. Step 2: Convert to fraction form
    70,957.64/106,436.46 = 39,352.76/x
  3. Step 3: Cross multiply
    70,957.64x = 106,436.46 × 39,352.76
  4. Step 4: Simplify right side
    70,957.64x = 4,188,568,465.63
  5. Step 5: Solve for x
    x = 4,188,568,465.63/70,957.64
  6. Step 6: Final answer
    x = 59,029.14

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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.