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Finding the Fourth Proportional to 353,716.49, 530,241.21 and 176,055.55

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Solution

The fourth proportional to 353,716.49, 530,241.21 and 176,055.55 is: 263,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,716.49 : 530,241.21 = 176,055.55 : x
  2. Step 2: Convert to fraction form
    353,716.49/530,241.21 = 176,055.55/x
  3. Step 3: Cross multiply
    353,716.49x = 530,241.21 × 176,055.55
  4. Step 4: Simplify right side
    353,716.49x = 93,351,906,533.61
  5. Step 5: Solve for x
    x = 93,351,906,533.61/353,716.49
  6. Step 6: Final answer
    x = 263,917.31

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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.