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Finding the Fourth Proportional to 68,064.63, 102,117.74 and 34,808.06

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Solution

The fourth proportional to 68,064.63, 102,117.74 and 34,808.06 is: 52,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,064.63 : 102,117.74 = 34,808.06 : x
  2. Step 2: Convert to fraction form
    68,064.63/102,117.74 = 34,808.06/x
  3. Step 3: Cross multiply
    68,064.63x = 102,117.74 × 34,808.06
  4. Step 4: Simplify right side
    68,064.63x = 3,554,519,736.36
  5. Step 5: Solve for x
    x = 3,554,519,736.36/68,064.63
  6. Step 6: Final answer
    x = 52,222.71

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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.