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Finding the Fourth Proportional to 302,612.80, 453,919.20 and 92,223.40

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Solution

The fourth proportional to 302,612.80, 453,919.20 and 92,223.40 is: 138,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,612.80 : 453,919.20 = 92,223.40 : x
  2. Step 2: Convert to fraction form
    302,612.80/453,919.20 = 92,223.40/x
  3. Step 3: Cross multiply
    302,612.80x = 453,919.20 × 92,223.40
  4. Step 4: Simplify right side
    302,612.80x = 41,861,971,949.28
  5. Step 5: Solve for x
    x = 41,861,971,949.28/302,612.80
  6. Step 6: Final answer
    x = 138,335.10

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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.