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Finding the Fourth Proportional to 84,486.71, 116,583.74 and 50,488.43

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Solution

The fourth proportional to 84,486.71, 116,583.74 and 50,488.43 is: 69,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486.71 : 116,583.74 = 50,488.43 : x
  2. Step 2: Convert to fraction form
    84,486.71/116,583.74 = 50,488.43/x
  3. Step 3: Cross multiply
    84,486.71x = 116,583.74 × 50,488.43
  4. Step 4: Simplify right side
    84,486.71x = 5,886,129,996.13
  5. Step 5: Solve for x
    x = 5,886,129,996.13/84,486.71
  6. Step 6: Final answer
    x = 69,669.30

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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.