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Finding the Fourth Proportional to 353,844.80, 530,767.20 and 104,523.20

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Solution

The fourth proportional to 353,844.80, 530,767.20 and 104,523.20 is: 156,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,844.80 : 530,767.20 = 104,523.20 : x
  2. Step 2: Convert to fraction form
    353,844.80/530,767.20 = 104,523.20/x
  3. Step 3: Cross multiply
    353,844.80x = 530,767.20 × 104,523.20
  4. Step 4: Simplify right side
    353,844.80x = 55,477,486,199.04
  5. Step 5: Solve for x
    x = 55,477,486,199.04/353,844.80
  6. Step 6: Final answer
    x = 156,784.80

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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.