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Finding the Fourth Proportional to 45,903.89, 68,859.17 and 19,223.04

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Solution

The fourth proportional to 45,903.89, 68,859.17 and 19,223.04 is: 28,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,903.89 : 68,859.17 = 19,223.04 : x
  2. Step 2: Convert to fraction form
    45,903.89/68,859.17 = 19,223.04/x
  3. Step 3: Cross multiply
    45,903.89x = 68,859.17 × 19,223.04
  4. Step 4: Simplify right side
    45,903.89x = 1,323,682,483.16
  5. Step 5: Solve for x
    x = 1,323,682,483.16/45,903.89
  6. Step 6: Final answer
    x = 28,835.96

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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.