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Finding the Fourth Proportional to 67,622.65, 101,465.87 and 30,179.38

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Solution

The fourth proportional to 67,622.65, 101,465.87 and 30,179.38 is: 45,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,622.65 : 101,465.87 = 30,179.38 : x
  2. Step 2: Convert to fraction form
    67,622.65/101,465.87 = 30,179.38/x
  3. Step 3: Cross multiply
    67,622.65x = 101,465.87 × 30,179.38
  4. Step 4: Simplify right side
    67,622.65x = 3,062,177,047.76
  5. Step 5: Solve for x
    x = 3,062,177,047.76/67,622.65
  6. Step 6: Final answer
    x = 45,283.30

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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.