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Finding the Fourth Proportional to 121,441.98, 167,610.42 and 89,702.94

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Solution

The fourth proportional to 121,441.98, 167,610.42 and 89,702.94 is: 123,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,441.98 : 167,610.42 = 89,702.94 : x
  2. Step 2: Convert to fraction form
    121,441.98/167,610.42 = 89,702.94/x
  3. Step 3: Cross multiply
    121,441.98x = 167,610.42 × 89,702.94
  4. Step 4: Simplify right side
    121,441.98x = 15,035,147,448.63
  5. Step 5: Solve for x
    x = 15,035,147,448.63/121,441.98
  6. Step 6: Final answer
    x = 123,805.19

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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.