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Finding the Fourth Proportional to 262,904.60, 394,423.25 and 73,364.79

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Solution

The fourth proportional to 262,904.60, 394,423.25 and 73,364.79 is: 110,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,904.60 : 394,423.25 = 73,364.79 : x
  2. Step 2: Convert to fraction form
    262,904.60/394,423.25 = 73,364.79/x
  3. Step 3: Cross multiply
    262,904.60x = 394,423.25 × 73,364.79
  4. Step 4: Simplify right side
    262,904.60x = 28,936,778,907.37
  5. Step 5: Solve for x
    x = 28,936,778,907.37/262,904.60
  6. Step 6: Final answer
    x = 110,065.70

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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.