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Finding the Fourth Proportional to 107,127.92, 160,631.64 and 43,930.64

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Solution

The fourth proportional to 107,127.92, 160,631.64 and 43,930.64 is: 65,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,127.92 : 160,631.64 = 43,930.64 : x
  2. Step 2: Convert to fraction form
    107,127.92/160,631.64 = 43,930.64/x
  3. Step 3: Cross multiply
    107,127.92x = 160,631.64 × 43,930.64
  4. Step 4: Simplify right side
    107,127.92x = 7,056,650,749.45
  5. Step 5: Solve for x
    x = 7,056,650,749.45/107,127.92
  6. Step 6: Final answer
    x = 65,871.26

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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.