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Finding the Fourth Proportional to 80,409.39, 110,969.99 and 46,424.10

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Solution

The fourth proportional to 80,409.39, 110,969.99 and 46,424.10 is: 64,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409.39 : 110,969.99 = 46,424.10 : x
  2. Step 2: Convert to fraction form
    80,409.39/110,969.99 = 46,424.10/x
  3. Step 3: Cross multiply
    80,409.39x = 110,969.99 × 46,424.10
  4. Step 4: Simplify right side
    80,409.39x = 5,151,682,270.87
  5. Step 5: Solve for x
    x = 5,151,682,270.87/80,409.39
  6. Step 6: Final answer
    x = 64,068.17

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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.