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Finding the Fourth Proportional to 64,068.94, 96,165.42 and 30,811.96

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Solution

The fourth proportional to 64,068.94, 96,165.42 and 30,811.96 is: 46,247.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,068.94 : 96,165.42 = 30,811.96 : x
  2. Step 2: Convert to fraction form
    64,068.94/96,165.42 = 30,811.96/x
  3. Step 3: Cross multiply
    64,068.94x = 96,165.42 × 30,811.96
  4. Step 4: Simplify right side
    64,068.94x = 2,963,045,074.42
  5. Step 5: Solve for x
    x = 2,963,045,074.42/64,068.94
  6. Step 6: Final answer
    x = 46,247.76

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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.