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Finding the Fourth Proportional to 216,790.65, 299,163.46 and 119,994.69

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Solution

The fourth proportional to 216,790.65, 299,163.46 and 119,994.69 is: 165,588.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,790.65 : 299,163.46 = 119,994.69 : x
  2. Step 2: Convert to fraction form
    216,790.65/299,163.46 = 119,994.69/x
  3. Step 3: Cross multiply
    216,790.65x = 299,163.46 × 119,994.69
  4. Step 4: Simplify right side
    216,790.65x = 35,898,026,042.05
  5. Step 5: Solve for x
    x = 35,898,026,042.05/216,790.65
  6. Step 6: Final answer
    x = 165,588.44

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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.