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Finding the Fourth Proportional to 70,993.72, 106,556.16 and 35,957.98

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Solution

The fourth proportional to 70,993.72, 106,556.16 and 35,957.98 is: 53,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,993.72 : 106,556.16 = 35,957.98 : x
  2. Step 2: Convert to fraction form
    70,993.72/106,556.16 = 35,957.98/x
  3. Step 3: Cross multiply
    70,993.72x = 106,556.16 × 35,957.98
  4. Step 4: Simplify right side
    70,993.72x = 3,831,544,270.16
  5. Step 5: Solve for x
    x = 3,831,544,270.16/70,993.72
  6. Step 6: Final answer
    x = 53,970.19

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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.