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Finding the Fourth Proportional to 343,994.73, 515,397.96 and 186,333.90

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Solution

The fourth proportional to 343,994.73, 515,397.96 and 186,333.90 is: 279,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,994.73 : 515,397.96 = 186,333.90 : x
  2. Step 2: Convert to fraction form
    343,994.73/515,397.96 = 186,333.90/x
  3. Step 3: Cross multiply
    343,994.73x = 515,397.96 × 186,333.90
  4. Step 4: Simplify right side
    343,994.73x = 96,036,111,938.84
  5. Step 5: Solve for x
    x = 96,036,111,938.84/343,994.73
  6. Step 6: Final answer
    x = 279,179.02

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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.