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Finding the Fourth Proportional to 159,790.44, 220,507 and 88,170.48

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Solution

The fourth proportional to 159,790.44, 220,507 and 88,170.48 is: 121,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,790.44 : 220,507 = 88,170.48 : x
  2. Step 2: Convert to fraction form
    159,790.44/220,507 = 88,170.48/x
  3. Step 3: Cross multiply
    159,790.44x = 220,507 × 88,170.48
  4. Step 4: Simplify right side
    159,790.44x = 19,442,208,033.36
  5. Step 5: Solve for x
    x = 19,442,208,033.36/159,790.44
  6. Step 6: Final answer
    x = 121,673.16

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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.