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Finding the Fourth Proportional to 68,315.46, 101,786.30 and 64,495.72

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Solution

The fourth proportional to 68,315.46, 101,786.30 and 64,495.72 is: 96,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.46 : 101,786.30 = 64,495.72 : x
  2. Step 2: Convert to fraction form
    68,315.46/101,786.30 = 64,495.72/x
  3. Step 3: Cross multiply
    68,315.46x = 101,786.30 × 64,495.72
  4. Step 4: Simplify right side
    68,315.46x = 6,564,780,704.64
  5. Step 5: Solve for x
    x = 6,564,780,704.64/68,315.46
  6. Step 6: Final answer
    x = 96,095.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.