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Finding the Fourth Proportional to 115,978.19, 173,994.53 and 36,012.06

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Solution

The fourth proportional to 115,978.19, 173,994.53 and 36,012.06 is: 54,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,978.19 : 173,994.53 = 36,012.06 : x
  2. Step 2: Convert to fraction form
    115,978.19/173,994.53 = 36,012.06/x
  3. Step 3: Cross multiply
    115,978.19x = 173,994.53 × 36,012.06
  4. Step 4: Simplify right side
    115,978.19x = 6,265,901,273.97
  5. Step 5: Solve for x
    x = 6,265,901,273.97/115,978.19
  6. Step 6: Final answer
    x = 54,026.55

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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.