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Finding the Fourth Proportional to 84,486.31, 116,583.14 and 50,488.03

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Solution

The fourth proportional to 84,486.31, 116,583.14 and 50,488.03 is: 69,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486.31 : 116,583.14 = 50,488.03 : x
  2. Step 2: Convert to fraction form
    84,486.31/116,583.14 = 50,488.03/x
  3. Step 3: Cross multiply
    84,486.31x = 116,583.14 × 50,488.03
  4. Step 4: Simplify right side
    84,486.31x = 5,886,053,069.81
  5. Step 5: Solve for x
    x = 5,886,053,069.81/84,486.31
  6. Step 6: Final answer
    x = 69,668.72

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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.