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Finding the Fourth Proportional to 199,173.83, 298,813.93 and 86,863.10

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Solution

The fourth proportional to 199,173.83, 298,813.93 and 86,863.10 is: 130,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,173.83 : 298,813.93 = 86,863.10 : x
  2. Step 2: Convert to fraction form
    199,173.83/298,813.93 = 86,863.10/x
  3. Step 3: Cross multiply
    199,173.83x = 298,813.93 × 86,863.10
  4. Step 4: Simplify right side
    199,173.83x = 25,955,902,571.76
  5. Step 5: Solve for x
    x = 25,955,902,571.76/199,173.83
  6. Step 6: Final answer
    x = 130,317.84

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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.