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Finding the Fourth Proportional to 84,906.77, 117,274.11 and 61,900.16

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Solution

The fourth proportional to 84,906.77, 117,274.11 and 61,900.16 is: 85,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,906.77 : 117,274.11 = 61,900.16 : x
  2. Step 2: Convert to fraction form
    84,906.77/117,274.11 = 61,900.16/x
  3. Step 3: Cross multiply
    84,906.77x = 117,274.11 × 61,900.16
  4. Step 4: Simplify right side
    84,906.77x = 7,259,286,466.04
  5. Step 5: Solve for x
    x = 7,259,286,466.04/84,906.77
  6. Step 6: Final answer
    x = 85,497.14

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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.