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Finding the Fourth Proportional to 68,017.47, 102,036.77 and 34,719.52

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Solution

The fourth proportional to 68,017.47, 102,036.77 and 34,719.52 is: 52,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,017.47 : 102,036.77 = 34,719.52 : x
  2. Step 2: Convert to fraction form
    68,017.47/102,036.77 = 34,719.52/x
  3. Step 3: Cross multiply
    68,017.47x = 102,036.77 × 34,719.52
  4. Step 4: Simplify right side
    68,017.47x = 3,542,667,592.60
  5. Step 5: Solve for x
    x = 3,542,667,592.60/68,017.47
  6. Step 6: Final answer
    x = 52,084.67

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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.