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Finding the Fourth Proportional to 263,376.03, 395,105.04 and 85,841.85

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Solution

The fourth proportional to 263,376.03, 395,105.04 and 85,841.85 is: 128,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,376.03 : 395,105.04 = 85,841.85 : x
  2. Step 2: Convert to fraction form
    263,376.03/395,105.04 = 85,841.85/x
  3. Step 3: Cross multiply
    263,376.03x = 395,105.04 × 85,841.85
  4. Step 4: Simplify right side
    263,376.03x = 33,916,547,577.92
  5. Step 5: Solve for x
    x = 33,916,547,577.92/263,376.03
  6. Step 6: Final answer
    x = 128,776.14

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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.