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Finding the Fourth Proportional to 132,124.40, 197,603.40 and 111,129.20

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Solution

The fourth proportional to 132,124.40, 197,603.40 and 111,129.20 is: 166,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,124.40 : 197,603.40 = 111,129.20 : x
  2. Step 2: Convert to fraction form
    132,124.40/197,603.40 = 111,129.20/x
  3. Step 3: Cross multiply
    132,124.40x = 197,603.40 × 111,129.20
  4. Step 4: Simplify right side
    132,124.40x = 21,959,507,759.28
  5. Step 5: Solve for x
    x = 21,959,507,759.28/132,124.40
  6. Step 6: Final answer
    x = 166,203.27

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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.