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Finding the Fourth Proportional to 106,575.20, 159,949.20 and 103,119.20

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Solution

The fourth proportional to 106,575.20, 159,949.20 and 103,119.20 is: 154,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,575.20 : 159,949.20 = 103,119.20 : x
  2. Step 2: Convert to fraction form
    106,575.20/159,949.20 = 103,119.20/x
  3. Step 3: Cross multiply
    106,575.20x = 159,949.20 × 103,119.20
  4. Step 4: Simplify right side
    106,575.20x = 16,493,833,544.64
  5. Step 5: Solve for x
    x = 16,493,833,544.64/106,575.20
  6. Step 6: Final answer
    x = 154,762.40

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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.