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Finding the Fourth Proportional to 263,161.63, 363,140.97 and 155,712.83

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Solution

The fourth proportional to 263,161.63, 363,140.97 and 155,712.83 is: 214,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,161.63 : 363,140.97 = 155,712.83 : x
  2. Step 2: Convert to fraction form
    263,161.63/363,140.97 = 155,712.83/x
  3. Step 3: Cross multiply
    263,161.63x = 363,140.97 × 155,712.83
  4. Step 4: Simplify right side
    263,161.63x = 56,545,708,127.65
  5. Step 5: Solve for x
    x = 56,545,708,127.65/263,161.63
  6. Step 6: Final answer
    x = 214,870.65

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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.