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Finding the Fourth Proportional to 352,444.97, 486,374.55 and 191,300.05

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Solution

The fourth proportional to 352,444.97, 486,374.55 and 191,300.05 is: 263,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,444.97 : 486,374.55 = 191,300.05 : x
  2. Step 2: Convert to fraction form
    352,444.97/486,374.55 = 191,300.05/x
  3. Step 3: Cross multiply
    352,444.97x = 486,374.55 × 191,300.05
  4. Step 4: Simplify right side
    352,444.97x = 93,043,474,517.79
  5. Step 5: Solve for x
    x = 93,043,474,517.79/352,444.97
  6. Step 6: Final answer
    x = 263,994.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.