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Finding the Fourth Proportional to 101,294.64, 139,764.15 and 58,271.49

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Solution

The fourth proportional to 101,294.64, 139,764.15 and 58,271.49 is: 80,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,294.64 : 139,764.15 = 58,271.49 : x
  2. Step 2: Convert to fraction form
    101,294.64/139,764.15 = 58,271.49/x
  3. Step 3: Cross multiply
    101,294.64x = 139,764.15 × 58,271.49
  4. Step 4: Simplify right side
    101,294.64x = 8,144,265,269.08
  5. Step 5: Solve for x
    x = 8,144,265,269.08/101,294.64
  6. Step 6: Final answer
    x = 80,401.74

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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.