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Finding the Fourth Proportional to 143,806.52, 215,635.08 and 43,946.48

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Solution

The fourth proportional to 143,806.52, 215,635.08 and 43,946.48 is: 65,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,806.52 : 215,635.08 = 43,946.48 : x
  2. Step 2: Convert to fraction form
    143,806.52/215,635.08 = 43,946.48/x
  3. Step 3: Cross multiply
    143,806.52x = 215,635.08 × 43,946.48
  4. Step 4: Simplify right side
    143,806.52x = 9,476,402,730.52
  5. Step 5: Solve for x
    x = 9,476,402,730.52/143,806.52
  6. Step 6: Final answer
    x = 65,896.89

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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.