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Finding the Fourth Proportional to 73,790, 101,832.36 and 40,258.16

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Solution

The fourth proportional to 73,790, 101,832.36 and 40,258.16 is: 55,557.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,790 : 101,832.36 = 40,258.16 : x
  2. Step 2: Convert to fraction form
    73,790/101,832.36 = 40,258.16/x
  3. Step 3: Cross multiply
    73,790x = 101,832.36 × 40,258.16
  4. Step 4: Simplify right side
    73,790x = 4,099,583,442.06
  5. Step 5: Solve for x
    x = 4,099,583,442.06/73,790
  6. Step 6: Final answer
    x = 55,557.44

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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.