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Finding the Fourth Proportional to 93,261.24, 139,962.87 and 68,364.54

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Solution

The fourth proportional to 93,261.24, 139,962.87 and 68,364.54 is: 102,598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,261.24 : 139,962.87 = 68,364.54 : x
  2. Step 2: Convert to fraction form
    93,261.24/139,962.87 = 68,364.54/x
  3. Step 3: Cross multiply
    93,261.24x = 139,962.87 × 68,364.54
  4. Step 4: Simplify right side
    93,261.24x = 9,568,497,224.63
  5. Step 5: Solve for x
    x = 9,568,497,224.63/93,261.24
  6. Step 6: Final answer
    x = 102,598.86

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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.