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Finding the Fourth Proportional to 117,475.88, 162,078.11 and 66,483.54

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Solution

The fourth proportional to 117,475.88, 162,078.11 and 66,483.54 is: 91,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,475.88 : 162,078.11 = 66,483.54 : x
  2. Step 2: Convert to fraction form
    117,475.88/162,078.11 = 66,483.54/x
  3. Step 3: Cross multiply
    117,475.88x = 162,078.11 × 66,483.54
  4. Step 4: Simplify right side
    117,475.88x = 10,775,526,176.89
  5. Step 5: Solve for x
    x = 10,775,526,176.89/117,475.88
  6. Step 6: Final answer
    x = 91,725.44

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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.