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Finding the Fourth Proportional to 338,064.03, 507,122.42 and 98,181.86

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Solution

The fourth proportional to 338,064.03, 507,122.42 and 98,181.86 is: 147,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,064.03 : 507,122.42 = 98,181.86 : x
  2. Step 2: Convert to fraction form
    338,064.03/507,122.42 = 98,181.86/x
  3. Step 3: Cross multiply
    338,064.03x = 507,122.42 × 98,181.86
  4. Step 4: Simplify right side
    338,064.03x = 49,790,219,416.78
  5. Step 5: Solve for x
    x = 49,790,219,416.78/338,064.03
  6. Step 6: Final answer
    x = 147,280.44

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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.