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Finding the Fourth Proportional to 143,795.15, 215,693.25 and 43,954.95

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Solution

The fourth proportional to 143,795.15, 215,693.25 and 43,954.95 is: 65,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,795.15 : 215,693.25 = 43,954.95 : x
  2. Step 2: Convert to fraction form
    143,795.15/215,693.25 = 43,954.95/x
  3. Step 3: Cross multiply
    143,795.15x = 215,693.25 × 43,954.95
  4. Step 4: Simplify right side
    143,795.15x = 9,480,786,663.11
  5. Step 5: Solve for x
    x = 9,480,786,663.11/143,795.15
  6. Step 6: Final answer
    x = 65,932.59

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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.