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Finding the Fourth Proportional to 93,913.68, 140,886.92 and 41,321.80

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Solution

The fourth proportional to 93,913.68, 140,886.92 and 41,321.80 is: 61,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,913.68 : 140,886.92 = 41,321.80 : x
  2. Step 2: Convert to fraction form
    93,913.68/140,886.92 = 41,321.80/x
  3. Step 3: Cross multiply
    93,913.68x = 140,886.92 × 41,321.80
  4. Step 4: Simplify right side
    93,913.68x = 5,821,700,881.94
  5. Step 5: Solve for x
    x = 5,821,700,881.94/93,913.68
  6. Step 6: Final answer
    x = 61,989.91

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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.