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Finding the Fourth Proportional to 303,757.60, 455,593.20 and 104,087.20

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Solution

The fourth proportional to 303,757.60, 455,593.20 and 104,087.20 is: 156,116.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,757.60 : 455,593.20 = 104,087.20 : x
  2. Step 2: Convert to fraction form
    303,757.60/455,593.20 = 104,087.20/x
  3. Step 3: Cross multiply
    303,757.60x = 455,593.20 × 104,087.20
  4. Step 4: Simplify right side
    303,757.60x = 47,421,420,527.04
  5. Step 5: Solve for x
    x = 47,421,420,527.04/303,757.60
  6. Step 6: Final answer
    x = 156,116.00

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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.