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Finding the Fourth Proportional to 93,348.20, 139,852.20 and 53,787.80

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Solution

The fourth proportional to 93,348.20, 139,852.20 and 53,787.80 is: 80,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,348.20 : 139,852.20 = 53,787.80 : x
  2. Step 2: Convert to fraction form
    93,348.20/139,852.20 = 53,787.80/x
  3. Step 3: Cross multiply
    93,348.20x = 139,852.20 × 53,787.80
  4. Step 4: Simplify right side
    93,348.20x = 7,522,342,163.16
  5. Step 5: Solve for x
    x = 7,522,342,163.16/93,348.20
  6. Step 6: Final answer
    x = 80,583.69

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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.