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Finding the Fourth Proportional to 173,363.10, 260,081.10 and 98,421.90

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Solution

The fourth proportional to 173,363.10, 260,081.10 and 98,421.90 is: 147,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,363.10 : 260,081.10 = 98,421.90 : x
  2. Step 2: Convert to fraction form
    173,363.10/260,081.10 = 98,421.90/x
  3. Step 3: Cross multiply
    173,363.10x = 260,081.10 × 98,421.90
  4. Step 4: Simplify right side
    173,363.10x = 25,597,676,016.09
  5. Step 5: Solve for x
    x = 25,597,676,016.09/173,363.10
  6. Step 6: Final answer
    x = 147,653.54

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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.