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Finding the Fourth Proportional to 326,065.30, 449,884.94 and 188,210.45

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Solution

The fourth proportional to 326,065.30, 449,884.94 and 188,210.45 is: 259,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,065.30 : 449,884.94 = 188,210.45 : x
  2. Step 2: Convert to fraction form
    326,065.30/449,884.94 = 188,210.45/x
  3. Step 3: Cross multiply
    326,065.30x = 449,884.94 × 188,210.45
  4. Step 4: Simplify right side
    326,065.30x = 84,673,047,189.28
  5. Step 5: Solve for x
    x = 84,673,047,189.28/326,065.30
  6. Step 6: Final answer
    x = 259,681.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.