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Finding the Fourth Proportional to 330,195.95, 495,301.37 and 187,018.12

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Solution

The fourth proportional to 330,195.95, 495,301.37 and 187,018.12 is: 280,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,195.95 : 495,301.37 = 187,018.12 : x
  2. Step 2: Convert to fraction form
    330,195.95/495,301.37 = 187,018.12/x
  3. Step 3: Cross multiply
    330,195.95x = 495,301.37 × 187,018.12
  4. Step 4: Simplify right side
    330,195.95x = 92,630,330,734.86
  5. Step 5: Solve for x
    x = 92,630,330,734.86/330,195.95
  6. Step 6: Final answer
    x = 280,531.40

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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.