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Finding the Fourth Proportional to 92,722.64, 139,082.76 and 64,233.32

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Solution

The fourth proportional to 92,722.64, 139,082.76 and 64,233.32 is: 96,349.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,722.64 : 139,082.76 = 64,233.32 : x
  2. Step 2: Convert to fraction form
    92,722.64/139,082.76 = 64,233.32/x
  3. Step 3: Cross multiply
    92,722.64x = 139,082.76 × 64,233.32
  4. Step 4: Simplify right side
    92,722.64x = 8,933,747,429.56
  5. Step 5: Solve for x
    x = 8,933,747,429.56/92,722.64
  6. Step 6: Final answer
    x = 96,349.15

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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.