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Finding the Fourth Proportional to 101,733, 140,357.94 and 61,431.46

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Solution

The fourth proportional to 101,733, 140,357.94 and 61,431.46 is: 84,755.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,733 : 140,357.94 = 61,431.46 : x
  2. Step 2: Convert to fraction form
    101,733/140,357.94 = 61,431.46/x
  3. Step 3: Cross multiply
    101,733x = 140,357.94 × 61,431.46
  4. Step 4: Simplify right side
    101,733x = 8,622,393,176.79
  5. Step 5: Solve for x
    x = 8,622,393,176.79/101,733
  6. Step 6: Final answer
    x = 84,755.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.