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Finding the Fourth Proportional to 320,682.96, 480,877.20 and 92,926.80

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Solution

The fourth proportional to 320,682.96, 480,877.20 and 92,926.80 is: 139,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,682.96 : 480,877.20 = 92,926.80 : x
  2. Step 2: Convert to fraction form
    320,682.96/480,877.20 = 92,926.80/x
  3. Step 3: Cross multiply
    320,682.96x = 480,877.20 × 92,926.80
  4. Step 4: Simplify right side
    320,682.96x = 44,686,379,388.96
  5. Step 5: Solve for x
    x = 44,686,379,388.96/320,682.96
  6. Step 6: Final answer
    x = 139,347.53

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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.