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Finding the Fourth Proportional to 173,842.20, 260,763.30 and 162,091.80

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Solution

The fourth proportional to 173,842.20, 260,763.30 and 162,091.80 is: 243,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,842.20 : 260,763.30 = 162,091.80 : x
  2. Step 2: Convert to fraction form
    173,842.20/260,763.30 = 162,091.80/x
  3. Step 3: Cross multiply
    173,842.20x = 260,763.30 × 162,091.80
  4. Step 4: Simplify right side
    173,842.20x = 42,267,592,670.94
  5. Step 5: Solve for x
    x = 42,267,592,670.94/173,842.20
  6. Step 6: Final answer
    x = 243,137.70

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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.