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Finding the Fourth Proportional to 242,728.76, 364,019.22 and 84,927.80

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Solution

The fourth proportional to 242,728.76, 364,019.22 and 84,927.80 is: 127,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,728.76 : 364,019.22 = 84,927.80 : x
  2. Step 2: Convert to fraction form
    242,728.76/364,019.22 = 84,927.80/x
  3. Step 3: Cross multiply
    242,728.76x = 364,019.22 × 84,927.80
  4. Step 4: Simplify right side
    242,728.76x = 30,915,351,512.32
  5. Step 5: Solve for x
    x = 30,915,351,512.32/242,728.76
  6. Step 6: Final answer
    x = 127,365.84

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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.