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Finding the Fourth Proportional to 281,765.87, 388,876.76 and 174,370.49

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Solution

The fourth proportional to 281,765.87, 388,876.76 and 174,370.49 is: 240,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,765.87 : 388,876.76 = 174,370.49 : x
  2. Step 2: Convert to fraction form
    281,765.87/388,876.76 = 174,370.49/x
  3. Step 3: Cross multiply
    281,765.87x = 388,876.76 × 174,370.49
  4. Step 4: Simplify right side
    281,765.87x = 67,808,628,374.58
  5. Step 5: Solve for x
    x = 67,808,628,374.58/281,765.87
  6. Step 6: Final answer
    x = 240,655.94

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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.