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Finding the Fourth Proportional to 67,619.40, 101,429.10 and 67,619.40

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Solution

The fourth proportional to 67,619.40, 101,429.10 and 67,619.40 is: 101,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,619.40 : 101,429.10 = 67,619.40 : x
  2. Step 2: Convert to fraction form
    67,619.40/101,429.10 = 67,619.40/x
  3. Step 3: Cross multiply
    67,619.40x = 101,429.10 × 67,619.40
  4. Step 4: Simplify right side
    67,619.40x = 6,858,574,884.54
  5. Step 5: Solve for x
    x = 6,858,574,884.54/67,619.40
  6. Step 6: Final answer
    x = 101,429.10

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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.