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Finding the Fourth Proportional to 93,465.20, 140,343.60 and 54,099.20

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Solution

The fourth proportional to 93,465.20, 140,343.60 and 54,099.20 is: 81,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,465.20 : 140,343.60 = 54,099.20 : x
  2. Step 2: Convert to fraction form
    93,465.20/140,343.60 = 54,099.20/x
  3. Step 3: Cross multiply
    93,465.20x = 140,343.60 × 54,099.20
  4. Step 4: Simplify right side
    93,465.20x = 7,592,476,485.12
  5. Step 5: Solve for x
    x = 7,592,476,485.12/93,465.20
  6. Step 6: Final answer
    x = 81,233.19

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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.