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Finding the Fourth Proportional to 317,912.13, 475,696.94 and 191,626.65

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Solution

The fourth proportional to 317,912.13, 475,696.94 and 191,626.65 is: 286,733.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,912.13 : 475,696.94 = 191,626.65 : x
  2. Step 2: Convert to fraction form
    317,912.13/475,696.94 = 191,626.65/x
  3. Step 3: Cross multiply
    317,912.13x = 475,696.94 × 191,626.65
  4. Step 4: Simplify right side
    317,912.13x = 91,156,210,069.32
  5. Step 5: Solve for x
    x = 91,156,210,069.32/317,912.13
  6. Step 6: Final answer
    x = 286,733.98

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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.