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Finding the Fourth Proportional to 93,939.65, 140,970.56 and 40,683.63

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Solution

The fourth proportional to 93,939.65, 140,970.56 and 40,683.63 is: 61,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,939.65 : 140,970.56 = 40,683.63 : x
  2. Step 2: Convert to fraction form
    93,939.65/140,970.56 = 40,683.63/x
  3. Step 3: Cross multiply
    93,939.65x = 140,970.56 × 40,683.63
  4. Step 4: Simplify right side
    93,939.65x = 5,735,194,103.93
  5. Step 5: Solve for x
    x = 5,735,194,103.93/93,939.65
  6. Step 6: Final answer
    x = 61,051.90

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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.