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Finding the Fourth Proportional to 93,886.56, 140,101.92 and 83,916

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Solution

The fourth proportional to 93,886.56, 140,101.92 and 83,916 is: 125,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,886.56 : 140,101.92 = 83,916 : x
  2. Step 2: Convert to fraction form
    93,886.56/140,101.92 = 83,916/x
  3. Step 3: Cross multiply
    93,886.56x = 140,101.92 × 83,916
  4. Step 4: Simplify right side
    93,886.56x = 11,756,792,718.72
  5. Step 5: Solve for x
    x = 11,756,792,718.72/93,886.56
  6. Step 6: Final answer
    x = 125,223.38

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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.