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Finding the Fourth Proportional to 250,785.70, 346,084.20 and 143,358.04

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Solution

The fourth proportional to 250,785.70, 346,084.20 and 143,358.04 is: 197,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,785.70 : 346,084.20 = 143,358.04 : x
  2. Step 2: Convert to fraction form
    250,785.70/346,084.20 = 143,358.04/x
  3. Step 3: Cross multiply
    250,785.70x = 346,084.20 × 143,358.04
  4. Step 4: Simplify right side
    250,785.70x = 49,613,952,586.97
  5. Step 5: Solve for x
    x = 49,613,952,586.97/250,785.70
  6. Step 6: Final answer
    x = 197,834.06

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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.