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Finding the Fourth Proportional to 68,868.12, 103,357.54 and 35,597.94

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Solution

The fourth proportional to 68,868.12, 103,357.54 and 35,597.94 is: 53,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,868.12 : 103,357.54 = 35,597.94 : x
  2. Step 2: Convert to fraction form
    68,868.12/103,357.54 = 35,597.94/x
  3. Step 3: Cross multiply
    68,868.12x = 103,357.54 × 35,597.94
  4. Step 4: Simplify right side
    68,868.12x = 3,679,315,507.47
  5. Step 5: Solve for x
    x = 3,679,315,507.47/68,868.12
  6. Step 6: Final answer
    x = 53,425.53

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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.