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Finding the Fourth Proportional to 327,551.51, 491,327.51 and 90,894.42

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Solution

The fourth proportional to 327,551.51, 491,327.51 and 90,894.42 is: 136,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,551.51 : 491,327.51 = 90,894.42 : x
  2. Step 2: Convert to fraction form
    327,551.51/491,327.51 = 90,894.42/x
  3. Step 3: Cross multiply
    327,551.51x = 491,327.51 × 90,894.42
  4. Step 4: Simplify right side
    327,551.51x = 44,658,929,051.49
  5. Step 5: Solve for x
    x = 44,658,929,051.49/327,551.51
  6. Step 6: Final answer
    x = 136,341.70

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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.