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Finding the Fourth Proportional to 250,813.66, 346,132.83 and 137,640.46

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Solution

The fourth proportional to 250,813.66, 346,132.83 and 137,640.46 is: 189,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,813.66 : 346,132.83 = 137,640.46 : x
  2. Step 2: Convert to fraction form
    250,813.66/346,132.83 = 137,640.46/x
  3. Step 3: Cross multiply
    250,813.66x = 346,132.83 × 137,640.46
  4. Step 4: Simplify right side
    250,813.66x = 47,641,881,942.30
  5. Step 5: Solve for x
    x = 47,641,881,942.30/250,813.66
  6. Step 6: Final answer
    x = 189,949.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.