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Finding the Fourth Proportional to 101,348.34, 139,846.43 and 58,311.48

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Solution

The fourth proportional to 101,348.34, 139,846.43 and 58,311.48 is: 80,461.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,348.34 : 139,846.43 = 58,311.48 : x
  2. Step 2: Convert to fraction form
    101,348.34/139,846.43 = 58,311.48/x
  3. Step 3: Cross multiply
    101,348.34x = 139,846.43 × 58,311.48
  4. Step 4: Simplify right side
    101,348.34x = 8,154,652,014.46
  5. Step 5: Solve for x
    x = 8,154,652,014.46/101,348.34
  6. Step 6: Final answer
    x = 80,461.62

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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.