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Finding the Fourth Proportional to 68,307.90, 102,507.86 and 23,935.02

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Solution

The fourth proportional to 68,307.90, 102,507.86 and 23,935.02 is: 35,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,307.90 : 102,507.86 = 23,935.02 : x
  2. Step 2: Convert to fraction form
    68,307.90/102,507.86 = 23,935.02/x
  3. Step 3: Cross multiply
    68,307.90x = 102,507.86 × 23,935.02
  4. Step 4: Simplify right side
    68,307.90x = 2,453,527,679.26
  5. Step 5: Solve for x
    x = 2,453,527,679.26/68,307.90
  6. Step 6: Final answer
    x = 35,918.65

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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.