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Finding the Fourth Proportional to 242,490.33, 363,736.23 and 84,718.80

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Solution

The fourth proportional to 242,490.33, 363,736.23 and 84,718.80 is: 127,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,490.33 : 363,736.23 = 84,718.80 : x
  2. Step 2: Convert to fraction form
    242,490.33/363,736.23 = 84,718.80/x
  3. Step 3: Cross multiply
    242,490.33x = 363,736.23 × 84,718.80
  4. Step 4: Simplify right side
    242,490.33x = 30,815,296,922.12
  5. Step 5: Solve for x
    x = 30,815,296,922.12/242,490.33
  6. Step 6: Final answer
    x = 127,078.46

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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.