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Finding the Fourth Proportional to 219,179.10, 328,768.65 and 125,867.10

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Solution

The fourth proportional to 219,179.10, 328,768.65 and 125,867.10 is: 188,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,179.10 : 328,768.65 = 125,867.10 : x
  2. Step 2: Convert to fraction form
    219,179.10/328,768.65 = 125,867.10/x
  3. Step 3: Cross multiply
    219,179.10x = 328,768.65 × 125,867.10
  4. Step 4: Simplify right side
    219,179.10x = 41,381,156,546.42
  5. Step 5: Solve for x
    x = 41,381,156,546.42/219,179.10
  6. Step 6: Final answer
    x = 188,800.65

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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.