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Finding the Fourth Proportional to 159,804.85, 220,531.34 and 88,186.94

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Solution

The fourth proportional to 159,804.85, 220,531.34 and 88,186.94 is: 121,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,804.85 : 220,531.34 = 88,186.94 : x
  2. Step 2: Convert to fraction form
    159,804.85/220,531.34 = 88,186.94/x
  3. Step 3: Cross multiply
    159,804.85x = 220,531.34 × 88,186.94
  4. Step 4: Simplify right side
    159,804.85x = 19,447,984,048.70
  5. Step 5: Solve for x
    x = 19,447,984,048.70/159,804.85
  6. Step 6: Final answer
    x = 121,698.33

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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.