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Finding the Fourth Proportional to 339,950.09, 469,139.96 and 186,992.21

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Solution

The fourth proportional to 339,950.09, 469,139.96 and 186,992.21 is: 258,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,950.09 : 469,139.96 = 186,992.21 : x
  2. Step 2: Convert to fraction form
    339,950.09/469,139.96 = 186,992.21/x
  3. Step 3: Cross multiply
    339,950.09x = 469,139.96 × 186,992.21
  4. Step 4: Simplify right side
    339,950.09x = 87,725,519,560.04
  5. Step 5: Solve for x
    x = 87,725,519,560.04/339,950.09
  6. Step 6: Final answer
    x = 258,054.11

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1.5x scale

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.