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Finding the Fourth Proportional to 84,958.70, 117,245.95 and 46,719.81

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Solution

The fourth proportional to 84,958.70, 117,245.95 and 46,719.81 is: 64,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,958.70 : 117,245.95 = 46,719.81 : x
  2. Step 2: Convert to fraction form
    84,958.70/117,245.95 = 46,719.81/x
  3. Step 3: Cross multiply
    84,958.70x = 117,245.95 × 46,719.81
  4. Step 4: Simplify right side
    84,958.70x = 5,477,708,390.47
  5. Step 5: Solve for x
    x = 5,477,708,390.47/84,958.70
  6. Step 6: Final answer
    x = 64,474.96

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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.