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Finding the Fourth Proportional to 209,653.98, 289,323.84 and 114,161.04

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Solution

The fourth proportional to 209,653.98, 289,323.84 and 114,161.04 is: 157,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,653.98 : 289,323.84 = 114,161.04 : x
  2. Step 2: Convert to fraction form
    209,653.98/289,323.84 = 114,161.04/x
  3. Step 3: Cross multiply
    209,653.98x = 289,323.84 × 114,161.04
  4. Step 4: Simplify right side
    209,653.98x = 33,029,510,471.19
  5. Step 5: Solve for x
    x = 33,029,510,471.19/209,653.98
  6. Step 6: Final answer
    x = 157,542.97

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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.