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Finding the Fourth Proportional to 192,855.63, 289,302.46 and 66,479.23

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Solution

The fourth proportional to 192,855.63, 289,302.46 and 66,479.23 is: 99,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,855.63 : 289,302.46 = 66,479.23 : x
  2. Step 2: Convert to fraction form
    192,855.63/289,302.46 = 66,479.23/x
  3. Step 3: Cross multiply
    192,855.63x = 289,302.46 × 66,479.23
  4. Step 4: Simplify right side
    192,855.63x = 19,232,605,828.34
  5. Step 5: Solve for x
    x = 19,232,605,828.34/192,855.63
  6. Step 6: Final answer
    x = 99,725.41

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1.5x scale

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.