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Finding the Fourth Proportional to 95,643.40, 143,465.10 and 73,568.20

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Solution

The fourth proportional to 95,643.40, 143,465.10 and 73,568.20 is: 110,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,643.40 : 143,465.10 = 73,568.20 : x
  2. Step 2: Convert to fraction form
    95,643.40/143,465.10 = 73,568.20/x
  3. Step 3: Cross multiply
    95,643.40x = 143,465.10 × 73,568.20
  4. Step 4: Simplify right side
    95,643.40x = 10,554,469,169.82
  5. Step 5: Solve for x
    x = 10,554,469,169.82/95,643.40
  6. Step 6: Final answer
    x = 110,352.30

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1.5x scale

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.