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Finding the Fourth Proportional to 330,046.98, 455,452.64 and 179,140.74

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Solution

The fourth proportional to 330,046.98, 455,452.64 and 179,140.74 is: 247,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,046.98 : 455,452.64 = 179,140.74 : x
  2. Step 2: Convert to fraction form
    330,046.98/455,452.64 = 179,140.74/x
  3. Step 3: Cross multiply
    330,046.98x = 455,452.64 × 179,140.74
  4. Step 4: Simplify right side
    330,046.98x = 81,590,122,964.55
  5. Step 5: Solve for x
    x = 81,590,122,964.55/330,046.98
  6. Step 6: Final answer
    x = 247,207.60

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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.