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Finding the Fourth Proportional to 101,648.41, 140,271.03 and 58,629.67

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Solution

The fourth proportional to 101,648.41, 140,271.03 and 58,629.67 is: 80,906.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,648.41 : 140,271.03 = 58,629.67 : x
  2. Step 2: Convert to fraction form
    101,648.41/140,271.03 = 58,629.67/x
  3. Step 3: Cross multiply
    101,648.41x = 140,271.03 × 58,629.67
  4. Step 4: Simplify right side
    101,648.41x = 8,224,044,199.46
  5. Step 5: Solve for x
    x = 8,224,044,199.46/101,648.41
  6. Step 6: Final answer
    x = 80,906.77

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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.