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Finding the Fourth Proportional to 84,883.92, 117,139.56 and 46,645.98

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Solution

The fourth proportional to 84,883.92, 117,139.56 and 46,645.98 is: 64,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,883.92 : 117,139.56 = 46,645.98 : x
  2. Step 2: Convert to fraction form
    84,883.92/117,139.56 = 46,645.98/x
  3. Step 3: Cross multiply
    84,883.92x = 117,139.56 × 46,645.98
  4. Step 4: Simplify right side
    84,883.92x = 5,464,089,572.97
  5. Step 5: Solve for x
    x = 5,464,089,572.97/84,883.92
  6. Step 6: Final answer
    x = 64,371.32

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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.