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Finding the Fourth Proportional to 93,589, 140,343.54 and 54,173.32

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Solution

The fourth proportional to 93,589, 140,343.54 and 54,173.32 is: 81,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,589 : 140,343.54 = 54,173.32 : x
  2. Step 2: Convert to fraction form
    93,589/140,343.54 = 54,173.32/x
  3. Step 3: Cross multiply
    93,589x = 140,343.54 × 54,173.32
  4. Step 4: Simplify right side
    93,589x = 7,602,875,502.35
  5. Step 5: Solve for x
    x = 7,602,875,502.35/93,589
  6. Step 6: Final answer
    x = 81,236.85

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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.