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Finding the Fourth Proportional to 298,861.22, 448,291.01 and 99,196.62

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Solution

The fourth proportional to 298,861.22, 448,291.01 and 99,196.62 is: 148,794.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,861.22 : 448,291.01 = 99,196.62 : x
  2. Step 2: Convert to fraction form
    298,861.22/448,291.01 = 99,196.62/x
  3. Step 3: Cross multiply
    298,861.22x = 448,291.01 × 99,196.62
  4. Step 4: Simplify right side
    298,861.22x = 44,468,953,216.38
  5. Step 5: Solve for x
    x = 44,468,953,216.38/298,861.22
  6. Step 6: Final answer
    x = 148,794.66

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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.