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Finding the Fourth Proportional to 222,761.40, 334,142.10 and 65,005.80

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Solution

The fourth proportional to 222,761.40, 334,142.10 and 65,005.80 is: 97,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,761.40 : 334,142.10 = 65,005.80 : x
  2. Step 2: Convert to fraction form
    222,761.40/334,142.10 = 65,005.80/x
  3. Step 3: Cross multiply
    222,761.40x = 334,142.10 × 65,005.80
  4. Step 4: Simplify right side
    222,761.40x = 21,721,174,524.18
  5. Step 5: Solve for x
    x = 21,721,174,524.18/222,761.40
  6. Step 6: Final answer
    x = 97,508.70

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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.