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Finding the Fourth Proportional to 143,254.44, 214,974.90 and 54,508.68

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Solution

The fourth proportional to 143,254.44, 214,974.90 and 54,508.68 is: 81,798.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,254.44 : 214,974.90 = 54,508.68 : x
  2. Step 2: Convert to fraction form
    143,254.44/214,974.90 = 54,508.68/x
  3. Step 3: Cross multiply
    143,254.44x = 214,974.90 × 54,508.68
  4. Step 4: Simplify right side
    143,254.44x = 11,717,998,032.13
  5. Step 5: Solve for x
    x = 11,717,998,032.13/143,254.44
  6. Step 6: Final answer
    x = 81,798.50

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1.5x scale

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.