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Finding the Fourth Proportional to 173,899.80, 260,460.90 and 90,696.60

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Solution

The fourth proportional to 173,899.80, 260,460.90 and 90,696.60 is: 135,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,899.80 : 260,460.90 = 90,696.60 : x
  2. Step 2: Convert to fraction form
    173,899.80/260,460.90 = 90,696.60/x
  3. Step 3: Cross multiply
    173,899.80x = 260,460.90 × 90,696.60
  4. Step 4: Simplify right side
    173,899.80x = 23,622,918,062.94
  5. Step 5: Solve for x
    x = 23,622,918,062.94/173,899.80
  6. Step 6: Final answer
    x = 135,842.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.