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Finding the Fourth Proportional to 250,761.31, 346,057.79 and 143,345.59

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Solution

The fourth proportional to 250,761.31, 346,057.79 and 143,345.59 is: 197,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,761.31 : 346,057.79 = 143,345.59 : x
  2. Step 2: Convert to fraction form
    250,761.31/346,057.79 = 143,345.59/x
  3. Step 3: Cross multiply
    250,761.31x = 346,057.79 × 143,345.59
  4. Step 4: Simplify right side
    250,761.31x = 49,605,856,499.77
  5. Step 5: Solve for x
    x = 49,605,856,499.77/250,761.31
  6. Step 6: Final answer
    x = 197,821.02

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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.