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Finding the Fourth Proportional to 190,906.60, 286,359.90 and 112,174.60

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Solution

The fourth proportional to 190,906.60, 286,359.90 and 112,174.60 is: 168,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,906.60 : 286,359.90 = 112,174.60 : x
  2. Step 2: Convert to fraction form
    190,906.60/286,359.90 = 112,174.60/x
  3. Step 3: Cross multiply
    190,906.60x = 286,359.90 × 112,174.60
  4. Step 4: Simplify right side
    190,906.60x = 32,122,307,238.54
  5. Step 5: Solve for x
    x = 32,122,307,238.54/190,906.60
  6. Step 6: Final answer
    x = 168,261.90

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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.