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Finding the Fourth Proportional to 132,001.40, 197,929.20 and 43,209.20

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Solution

The fourth proportional to 132,001.40, 197,929.20 and 43,209.20 is: 64,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,001.40 : 197,929.20 = 43,209.20 : x
  2. Step 2: Convert to fraction form
    132,001.40/197,929.20 = 43,209.20/x
  3. Step 3: Cross multiply
    132,001.40x = 197,929.20 × 43,209.20
  4. Step 4: Simplify right side
    132,001.40x = 8,552,362,388.64
  5. Step 5: Solve for x
    x = 8,552,362,388.64/132,001.40
  6. Step 6: Final answer
    x = 64,789.94

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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.