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Finding the Fourth Proportional to 133,748.70, 200,331.45 and 110,420.70

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Solution

The fourth proportional to 133,748.70, 200,331.45 and 110,420.70 is: 165,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,748.70 : 200,331.45 = 110,420.70 : x
  2. Step 2: Convert to fraction form
    133,748.70/200,331.45 = 110,420.70/x
  3. Step 3: Cross multiply
    133,748.70x = 200,331.45 × 110,420.70
  4. Step 4: Simplify right side
    133,748.70x = 22,120,738,941.02
  5. Step 5: Solve for x
    x = 22,120,738,941.02/133,748.70
  6. Step 6: Final answer
    x = 165,390.31

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1.5x scale

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.