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Finding the Fourth Proportional to 120,317.99, 166,042.74 and 69,326.76

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Solution

The fourth proportional to 120,317.99, 166,042.74 and 69,326.76 is: 95,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,317.99 : 166,042.74 = 69,326.76 : x
  2. Step 2: Convert to fraction form
    120,317.99/166,042.74 = 69,326.76/x
  3. Step 3: Cross multiply
    120,317.99x = 166,042.74 × 69,326.76
  4. Step 4: Simplify right side
    120,317.99x = 11,511,205,185.72
  5. Step 5: Solve for x
    x = 11,511,205,185.72/120,317.99
  6. Step 6: Final answer
    x = 95,673.19

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Half scale
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Double scale
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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.