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Finding the Fourth Proportional to 159,858.18, 220,604.31 and 88,238.22

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Solution

The fourth proportional to 159,858.18, 220,604.31 and 88,238.22 is: 121,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858.18 : 220,604.31 = 88,238.22 : x
  2. Step 2: Convert to fraction form
    159,858.18/220,604.31 = 88,238.22/x
  3. Step 3: Cross multiply
    159,858.18x = 220,604.31 × 88,238.22
  4. Step 4: Simplify right side
    159,858.18x = 19,465,730,811.46
  5. Step 5: Solve for x
    x = 19,465,730,811.46/159,858.18
  6. Step 6: Final answer
    x = 121,768.75

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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.