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Finding the Fourth Proportional to 263,491.61, 395,114.36 and 94,989.74

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Solution

The fourth proportional to 263,491.61, 395,114.36 and 94,989.74 is: 142,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,491.61 : 395,114.36 = 94,989.74 : x
  2. Step 2: Convert to fraction form
    263,491.61/395,114.36 = 94,989.74/x
  3. Step 3: Cross multiply
    263,491.61x = 395,114.36 × 94,989.74
  4. Step 4: Simplify right side
    263,491.61x = 37,531,810,326.67
  5. Step 5: Solve for x
    x = 37,531,810,326.67/263,491.61
  6. Step 6: Final answer
    x = 142,440.25

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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.