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Finding the Fourth Proportional to 102,930.56, 154,368.05 and 36,361.92

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Solution

The fourth proportional to 102,930.56, 154,368.05 and 36,361.92 is: 54,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930.56 : 154,368.05 = 36,361.92 : x
  2. Step 2: Convert to fraction form
    102,930.56/154,368.05 = 36,361.92/x
  3. Step 3: Cross multiply
    102,930.56x = 154,368.05 × 36,361.92
  4. Step 4: Simplify right side
    102,930.56x = 5,613,118,684.66
  5. Step 5: Solve for x
    x = 5,613,118,684.66/102,930.56
  6. Step 6: Final answer
    x = 54,533.07

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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.