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Finding the Fourth Proportional to 173,078.20, 259,827.90 and 109,898.20

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Solution

The fourth proportional to 173,078.20, 259,827.90 and 109,898.20 is: 164,981.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,078.20 : 259,827.90 = 109,898.20 : x
  2. Step 2: Convert to fraction form
    173,078.20/259,827.90 = 109,898.20/x
  3. Step 3: Cross multiply
    173,078.20x = 259,827.90 × 109,898.20
  4. Step 4: Simplify right side
    173,078.20x = 28,554,618,519.78
  5. Step 5: Solve for x
    x = 28,554,618,519.78/173,078.20
  6. Step 6: Final answer
    x = 164,981.02

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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.