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Finding the Fourth Proportional to 74,093.82, 102,248.64 and 40,101.60

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Solution

The fourth proportional to 74,093.82, 102,248.64 and 40,101.60 is: 55,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,093.82 : 102,248.64 = 40,101.60 : x
  2. Step 2: Convert to fraction form
    74,093.82/102,248.64 = 40,101.60/x
  3. Step 3: Cross multiply
    74,093.82x = 102,248.64 × 40,101.60
  4. Step 4: Simplify right side
    74,093.82x = 4,100,334,061.82
  5. Step 5: Solve for x
    x = 4,100,334,061.82/74,093.82
  6. Step 6: Final answer
    x = 55,339.76

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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.