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Finding the Fourth Proportional to 93,747, 140,620.50 and 28,083

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Solution

The fourth proportional to 93,747, 140,620.50 and 28,083 is: 42,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,747 : 140,620.50 = 28,083 : x
  2. Step 2: Convert to fraction form
    93,747/140,620.50 = 28,083/x
  3. Step 3: Cross multiply
    93,747x = 140,620.50 × 28,083
  4. Step 4: Simplify right side
    93,747x = 3,949,045,501.50
  5. Step 5: Solve for x
    x = 3,949,045,501.50/93,747
  6. Step 6: Final answer
    x = 42,124.50

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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.