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Finding the Fourth Proportional to 330,281.94, 455,791.44 and 179,378.94

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Solution

The fourth proportional to 330,281.94, 455,791.44 and 179,378.94 is: 247,544.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,281.94 : 455,791.44 = 179,378.94 : x
  2. Step 2: Convert to fraction form
    330,281.94/455,791.44 = 179,378.94/x
  3. Step 3: Cross multiply
    330,281.94x = 455,791.44 × 179,378.94
  4. Step 4: Simplify right side
    330,281.94x = 81,759,385,368.27
  5. Step 5: Solve for x
    x = 81,759,385,368.27/330,281.94
  6. Step 6: Final answer
    x = 247,544.22

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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.