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Finding the Fourth Proportional to 68,527.50, 102,238.41 and 61,047.96

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Solution

The fourth proportional to 68,527.50, 102,238.41 and 61,047.96 is: 91,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,527.50 : 102,238.41 = 61,047.96 : x
  2. Step 2: Convert to fraction form
    68,527.50/102,238.41 = 61,047.96/x
  3. Step 3: Cross multiply
    68,527.50x = 102,238.41 × 61,047.96
  4. Step 4: Simplify right side
    68,527.50x = 6,241,446,364.14
  5. Step 5: Solve for x
    x = 6,241,446,364.14/68,527.50
  6. Step 6: Final answer
    x = 91,079.44

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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.