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Finding the Fourth Proportional to 133,285.63, 199,756.22 and 99,742.52

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Solution

The fourth proportional to 133,285.63, 199,756.22 and 99,742.52 is: 149,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,285.63 : 199,756.22 = 99,742.52 : x
  2. Step 2: Convert to fraction form
    133,285.63/199,756.22 = 99,742.52/x
  3. Step 3: Cross multiply
    133,285.63x = 199,756.22 × 99,742.52
  4. Step 4: Simplify right side
    133,285.63x = 19,924,188,768.47
  5. Step 5: Solve for x
    x = 19,924,188,768.47/133,285.63
  6. Step 6: Final answer
    x = 149,484.90

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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.