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Finding the Fourth Proportional to 93,225.78, 140,541.44 and 87,212.34

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Solution

The fourth proportional to 93,225.78, 140,541.44 and 87,212.34 is: 131,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,225.78 : 140,541.44 = 87,212.34 : x
  2. Step 2: Convert to fraction form
    93,225.78/140,541.44 = 87,212.34/x
  3. Step 3: Cross multiply
    93,225.78x = 140,541.44 × 87,212.34
  4. Step 4: Simplify right side
    93,225.78x = 12,256,947,413.31
  5. Step 5: Solve for x
    x = 12,256,947,413.31/93,225.78
  6. Step 6: Final answer
    x = 131,475.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.