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Finding the Fourth Proportional to 190,393.04, 285,658.68 and 155,556.56

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Solution

The fourth proportional to 190,393.04, 285,658.68 and 155,556.56 is: 233,391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,393.04 : 285,658.68 = 155,556.56 : x
  2. Step 2: Convert to fraction form
    190,393.04/285,658.68 = 155,556.56/x
  3. Step 3: Cross multiply
    190,393.04x = 285,658.68 × 155,556.56
  4. Step 4: Simplify right side
    190,393.04x = 44,436,081,594.94
  5. Step 5: Solve for x
    x = 44,436,081,594.94/190,393.04
  6. Step 6: Final answer
    x = 233,391.31

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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.