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Finding the Fourth Proportional to 173,820.90, 260,736.21 and 61,485.24

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Solution

The fourth proportional to 173,820.90, 260,736.21 and 61,485.24 is: 92,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,820.90 : 260,736.21 = 61,485.24 : x
  2. Step 2: Convert to fraction form
    173,820.90/260,736.21 = 61,485.24/x
  3. Step 3: Cross multiply
    173,820.90x = 260,736.21 × 61,485.24
  4. Step 4: Simplify right side
    173,820.90x = 16,031,428,448.54
  5. Step 5: Solve for x
    x = 16,031,428,448.54/173,820.90
  6. Step 6: Final answer
    x = 92,229.58

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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.