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Finding the Fourth Proportional to 93,884.86, 139,989.81 and 83,452.87

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Solution

The fourth proportional to 93,884.86, 139,989.81 and 83,452.87 is: 124,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,884.86 : 139,989.81 = 83,452.87 : x
  2. Step 2: Convert to fraction form
    93,884.86/139,989.81 = 83,452.87/x
  3. Step 3: Cross multiply
    93,884.86x = 139,989.81 × 83,452.87
  4. Step 4: Simplify right side
    93,884.86x = 11,682,551,415.25
  5. Step 5: Solve for x
    x = 11,682,551,415.25/93,884.86
  6. Step 6: Final answer
    x = 124,434.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.