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Finding the Fourth Proportional to 117,783.36, 162,569.93 and 66,825.92

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Solution

The fourth proportional to 117,783.36, 162,569.93 and 66,825.92 is: 92,236.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,783.36 : 162,569.93 = 66,825.92 : x
  2. Step 2: Convert to fraction form
    117,783.36/162,569.93 = 66,825.92/x
  3. Step 3: Cross multiply
    117,783.36x = 162,569.93 × 66,825.92
  4. Step 4: Simplify right side
    117,783.36x = 10,863,885,208.88
  5. Step 5: Solve for x
    x = 10,863,885,208.88/117,783.36
  6. Step 6: Final answer
    x = 92,236.16

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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.