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Finding the Fourth Proportional to 117,962.73, 162,790.43 and 64,247.72

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Solution

The fourth proportional to 117,962.73, 162,790.43 and 64,247.72 is: 88,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,962.73 : 162,790.43 = 64,247.72 : x
  2. Step 2: Convert to fraction form
    117,962.73/162,790.43 = 64,247.72/x
  3. Step 3: Cross multiply
    117,962.73x = 162,790.43 × 64,247.72
  4. Step 4: Simplify right side
    117,962.73x = 10,458,912,830.13
  5. Step 5: Solve for x
    x = 10,458,912,830.13/117,962.73
  6. Step 6: Final answer
    x = 88,662.86

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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.