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Finding the Fourth Proportional to 190,958.40, 286,743.60 and 151,840.80

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Solution

The fourth proportional to 190,958.40, 286,743.60 and 151,840.80 is: 228,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,958.40 : 286,743.60 = 151,840.80 : x
  2. Step 2: Convert to fraction form
    190,958.40/286,743.60 = 151,840.80/x
  3. Step 3: Cross multiply
    190,958.40x = 286,743.60 × 151,840.80
  4. Step 4: Simplify right side
    190,958.40x = 43,539,377,618.88
  5. Step 5: Solve for x
    x = 43,539,377,618.88/190,958.40
  6. Step 6: Final answer
    x = 228,004.52

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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.