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Finding the Fourth Proportional to 336,607.11, 504,854.42 and 111,991.28

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Solution

The fourth proportional to 336,607.11, 504,854.42 and 111,991.28 is: 167,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,607.11 : 504,854.42 = 111,991.28 : x
  2. Step 2: Convert to fraction form
    336,607.11/504,854.42 = 111,991.28/x
  3. Step 3: Cross multiply
    336,607.11x = 504,854.42 × 111,991.28
  4. Step 4: Simplify right side
    336,607.11x = 56,539,289,625.23
  5. Step 5: Solve for x
    x = 56,539,289,625.23/336,607.11
  6. Step 6: Final answer
    x = 167,968.20

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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.