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Finding the Fourth Proportional to 145,994.06, 218,990.60 and 35,186.06

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Solution

The fourth proportional to 145,994.06, 218,990.60 and 35,186.06 is: 52,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,994.06 : 218,990.60 = 35,186.06 : x
  2. Step 2: Convert to fraction form
    145,994.06/218,990.60 = 35,186.06/x
  3. Step 3: Cross multiply
    145,994.06x = 218,990.60 × 35,186.06
  4. Step 4: Simplify right side
    145,994.06x = 7,705,416,391.04
  5. Step 5: Solve for x
    x = 7,705,416,391.04/145,994.06
  6. Step 6: Final answer
    x = 52,778.97

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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.