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Finding the Fourth Proportional to 115,362.40, 173,043.60 and 107,926.60

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Solution

The fourth proportional to 115,362.40, 173,043.60 and 107,926.60 is: 161,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,362.40 : 173,043.60 = 107,926.60 : x
  2. Step 2: Convert to fraction form
    115,362.40/173,043.60 = 107,926.60/x
  3. Step 3: Cross multiply
    115,362.40x = 173,043.60 × 107,926.60
  4. Step 4: Simplify right side
    115,362.40x = 18,676,007,399.76
  5. Step 5: Solve for x
    x = 18,676,007,399.76/115,362.40
  6. Step 6: Final answer
    x = 161,889.90

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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.