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Finding the Fourth Proportional to 115,901.40, 173,633.40 and 108,028.20

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Solution

The fourth proportional to 115,901.40, 173,633.40 and 108,028.20 is: 161,838.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,901.40 : 173,633.40 = 108,028.20 : x
  2. Step 2: Convert to fraction form
    115,901.40/173,633.40 = 108,028.20/x
  3. Step 3: Cross multiply
    115,901.40x = 173,633.40 × 108,028.20
  4. Step 4: Simplify right side
    115,901.40x = 18,757,303,661.88
  5. Step 5: Solve for x
    x = 18,757,303,661.88/115,901.40
  6. Step 6: Final answer
    x = 161,838.46

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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.