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Finding the Fourth Proportional to 190,954.40, 286,737.60 and 151,836.80

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Solution

The fourth proportional to 190,954.40, 286,737.60 and 151,836.80 is: 227,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,954.40 : 286,737.60 = 151,836.80 : x
  2. Step 2: Convert to fraction form
    190,954.40/286,737.60 = 151,836.80/x
  3. Step 3: Cross multiply
    190,954.40x = 286,737.60 × 151,836.80
  4. Step 4: Simplify right side
    190,954.40x = 43,537,319,623.68
  5. Step 5: Solve for x
    x = 43,537,319,623.68/190,954.40
  6. Step 6: Final answer
    x = 227,998.51

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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.