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Finding the Fourth Proportional to 143,093.70, 214,642.53 and 43,254.72

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Solution

The fourth proportional to 143,093.70, 214,642.53 and 43,254.72 is: 64,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,093.70 : 214,642.53 = 43,254.72 : x
  2. Step 2: Convert to fraction form
    143,093.70/214,642.53 = 43,254.72/x
  3. Step 3: Cross multiply
    143,093.70x = 214,642.53 × 43,254.72
  4. Step 4: Simplify right side
    143,093.70x = 9,284,302,535.24
  5. Step 5: Solve for x
    x = 9,284,302,535.24/143,093.70
  6. Step 6: Final answer
    x = 64,882.68

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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.