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Finding the Fourth Proportional to 317,869.87, 476,751.77 and 104,640.10

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Solution

The fourth proportional to 317,869.87, 476,751.77 and 104,640.10 is: 156,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,869.87 : 476,751.77 = 104,640.10 : x
  2. Step 2: Convert to fraction form
    317,869.87/476,751.77 = 104,640.10/x
  3. Step 3: Cross multiply
    317,869.87x = 476,751.77 × 104,640.10
  4. Step 4: Simplify right side
    317,869.87x = 49,887,354,835.63
  5. Step 5: Solve for x
    x = 49,887,354,835.63/317,869.87
  6. Step 6: Final answer
    x = 156,942.70

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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.