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Finding the Fourth Proportional to 216,627.48, 324,984.96 and 76,484.52

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Solution

The fourth proportional to 216,627.48, 324,984.96 and 76,484.52 is: 114,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,627.48 : 324,984.96 = 76,484.52 : x
  2. Step 2: Convert to fraction form
    216,627.48/324,984.96 = 76,484.52/x
  3. Step 3: Cross multiply
    216,627.48x = 324,984.96 × 76,484.52
  4. Step 4: Simplify right side
    216,627.48x = 24,856,318,672.82
  5. Step 5: Solve for x
    x = 24,856,318,672.82/216,627.48
  6. Step 6: Final answer
    x = 114,742.22

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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.