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Finding the Fourth Proportional to 194,448.60, 291,745.80 and 76,204.80

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Solution

The fourth proportional to 194,448.60, 291,745.80 and 76,204.80 is: 114,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,448.60 : 291,745.80 = 76,204.80 : x
  2. Step 2: Convert to fraction form
    194,448.60/291,745.80 = 76,204.80/x
  3. Step 3: Cross multiply
    194,448.60x = 291,745.80 × 76,204.80
  4. Step 4: Simplify right side
    194,448.60x = 22,232,430,339.84
  5. Step 5: Solve for x
    x = 22,232,430,339.84/194,448.60
  6. Step 6: Final answer
    x = 114,335.77

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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.