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Finding the Fourth Proportional to 81,293.94, 112,186.08 and 45,484.02

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Solution

The fourth proportional to 81,293.94, 112,186.08 and 45,484.02 is: 62,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,293.94 : 112,186.08 = 45,484.02 : x
  2. Step 2: Convert to fraction form
    81,293.94/112,186.08 = 45,484.02/x
  3. Step 3: Cross multiply
    81,293.94x = 112,186.08 × 45,484.02
  4. Step 4: Simplify right side
    81,293.94x = 5,102,673,906.44
  5. Step 5: Solve for x
    x = 5,102,673,906.44/81,293.94
  6. Step 6: Final answer
    x = 62,768.20

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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.