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Finding the Fourth Proportional to 68,322.40, 102,495.89 and 32,753.57

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Solution

The fourth proportional to 68,322.40, 102,495.89 and 32,753.57 is: 49,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,322.40 : 102,495.89 = 32,753.57 : x
  2. Step 2: Convert to fraction form
    68,322.40/102,495.89 = 32,753.57/x
  3. Step 3: Cross multiply
    68,322.40x = 102,495.89 × 32,753.57
  4. Step 4: Simplify right side
    68,322.40x = 3,357,106,400.30
  5. Step 5: Solve for x
    x = 3,357,106,400.30/68,322.40
  6. Step 6: Final answer
    x = 49,136.25

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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.