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Finding the Fourth Proportional to 104,054.20, 155,735.70 and 72,950.20

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Solution

The fourth proportional to 104,054.20, 155,735.70 and 72,950.20 is: 109,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,054.20 : 155,735.70 = 72,950.20 : x
  2. Step 2: Convert to fraction form
    104,054.20/155,735.70 = 72,950.20/x
  3. Step 3: Cross multiply
    104,054.20x = 155,735.70 × 72,950.20
  4. Step 4: Simplify right side
    104,054.20x = 11,360,950,462.14
  5. Step 5: Solve for x
    x = 11,360,950,462.14/104,054.20
  6. Step 6: Final answer
    x = 109,183.01

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1.5x scale

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.