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Finding the Fourth Proportional to 135,503.84, 203,223.08 and 56,575.28

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Solution

The fourth proportional to 135,503.84, 203,223.08 and 56,575.28 is: 84,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,503.84 : 203,223.08 = 56,575.28 : x
  2. Step 2: Convert to fraction form
    135,503.84/203,223.08 = 56,575.28/x
  3. Step 3: Cross multiply
    135,503.84x = 203,223.08 × 56,575.28
  4. Step 4: Simplify right side
    135,503.84x = 11,497,401,778.79
  5. Step 5: Solve for x
    x = 11,497,401,778.79/135,503.84
  6. Step 6: Final answer
    x = 84,849.27

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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.