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Finding the Fourth Proportional to 88,896.82, 122,619.81 and 57,015.22

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Solution

The fourth proportional to 88,896.82, 122,619.81 and 57,015.22 is: 78,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,896.82 : 122,619.81 = 57,015.22 : x
  2. Step 2: Convert to fraction form
    88,896.82/122,619.81 = 57,015.22/x
  3. Step 3: Cross multiply
    88,896.82x = 122,619.81 × 57,015.22
  4. Step 4: Simplify right side
    88,896.82x = 6,991,195,443.51
  5. Step 5: Solve for x
    x = 6,991,195,443.51/88,896.82
  6. Step 6: Final answer
    x = 78,643.93

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1.5x scale

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.