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Finding the Fourth Proportional to 115,999.40, 173,999.10 and 115,999.40

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Solution

The fourth proportional to 115,999.40, 173,999.10 and 115,999.40 is: 173,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,999.40 : 173,999.10 = 115,999.40 : x
  2. Step 2: Convert to fraction form
    115,999.40/173,999.10 = 115,999.40/x
  3. Step 3: Cross multiply
    115,999.40x = 173,999.10 × 115,999.40
  4. Step 4: Simplify right side
    115,999.40x = 20,183,791,200.54
  5. Step 5: Solve for x
    x = 20,183,791,200.54/115,999.40
  6. Step 6: Final answer
    x = 173,999.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.