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Finding the Fourth Proportional to 106,889.76, 147,508.29 and 58,493.07

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Solution

The fourth proportional to 106,889.76, 147,508.29 and 58,493.07 is: 80,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,889.76 : 147,508.29 = 58,493.07 : x
  2. Step 2: Convert to fraction form
    106,889.76/147,508.29 = 58,493.07/x
  3. Step 3: Cross multiply
    106,889.76x = 147,508.29 × 58,493.07
  4. Step 4: Simplify right side
    106,889.76x = 8,628,212,732.55
  5. Step 5: Solve for x
    x = 8,628,212,732.55/106,889.76
  6. Step 6: Final answer
    x = 80,720.67

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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.