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Finding the Fourth Proportional to 117,951.62, 162,768.80 and 64,235.38

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Solution

The fourth proportional to 117,951.62, 162,768.80 and 64,235.38 is: 88,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,951.62 : 162,768.80 = 64,235.38 : x
  2. Step 2: Convert to fraction form
    117,951.62/162,768.80 = 64,235.38/x
  3. Step 3: Cross multiply
    117,951.62x = 162,768.80 × 64,235.38
  4. Step 4: Simplify right side
    117,951.62x = 10,455,515,720.14
  5. Step 5: Solve for x
    x = 10,455,515,720.14/117,951.62
  6. Step 6: Final answer
    x = 88,642.41

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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.