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Finding the Fourth Proportional to 161,145.20, 241,717.80 and 134,901.20

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Solution

The fourth proportional to 161,145.20, 241,717.80 and 134,901.20 is: 202,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,145.20 : 241,717.80 = 134,901.20 : x
  2. Step 2: Convert to fraction form
    161,145.20/241,717.80 = 134,901.20/x
  3. Step 3: Cross multiply
    161,145.20x = 241,717.80 × 134,901.20
  4. Step 4: Simplify right side
    161,145.20x = 32,608,021,281.36
  5. Step 5: Solve for x
    x = 32,608,021,281.36/161,145.20
  6. Step 6: Final answer
    x = 202,351.80

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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.