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Finding the Fourth Proportional to 311,946.90, 467,920.35 and 112,273.80

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Solution

The fourth proportional to 311,946.90, 467,920.35 and 112,273.80 is: 168,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,946.90 : 467,920.35 = 112,273.80 : x
  2. Step 2: Convert to fraction form
    311,946.90/467,920.35 = 112,273.80/x
  3. Step 3: Cross multiply
    311,946.90x = 467,920.35 × 112,273.80
  4. Step 4: Simplify right side
    311,946.90x = 52,535,195,791.83
  5. Step 5: Solve for x
    x = 52,535,195,791.83/311,946.90
  6. Step 6: Final answer
    x = 168,410.70

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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.