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Finding the Fourth Proportional to 449,513.68, 674,536.53 and 165,403.74

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Solution

The fourth proportional to 449,513.68, 674,536.53 and 165,403.74 is: 248,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,513.68 : 674,536.53 = 165,403.74 : x
  2. Step 2: Convert to fraction form
    449,513.68/674,536.53 = 165,403.74/x
  3. Step 3: Cross multiply
    449,513.68x = 674,536.53 × 165,403.74
  4. Step 4: Simplify right side
    449,513.68x = 111,570,860,628.92
  5. Step 5: Solve for x
    x = 111,570,860,628.92/449,513.68
  6. Step 6: Final answer
    x = 248,203.48

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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.