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Finding the Fourth Proportional to 101,832.21, 140,522.10 and 61,522.16

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Solution

The fourth proportional to 101,832.21, 140,522.10 and 61,522.16 is: 84,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,832.21 : 140,522.10 = 61,522.16 : x
  2. Step 2: Convert to fraction form
    101,832.21/140,522.10 = 61,522.16/x
  3. Step 3: Cross multiply
    101,832.21x = 140,522.10 × 61,522.16
  4. Step 4: Simplify right side
    101,832.21x = 8,645,222,417.13
  5. Step 5: Solve for x
    x = 8,645,222,417.13/101,832.21
  6. Step 6: Final answer
    x = 84,896.74

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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.