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Finding the Fourth Proportional to 117,750.72, 162,448.08 and 66,752.64

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Solution

The fourth proportional to 117,750.72, 162,448.08 and 66,752.64 is: 92,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,750.72 : 162,448.08 = 66,752.64 : x
  2. Step 2: Convert to fraction form
    117,750.72/162,448.08 = 66,752.64/x
  3. Step 3: Cross multiply
    117,750.72x = 162,448.08 × 66,752.64
  4. Step 4: Simplify right side
    117,750.72x = 10,843,838,202.93
  5. Step 5: Solve for x
    x = 10,843,838,202.93/117,750.72
  6. Step 6: Final answer
    x = 92,091.48

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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.