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Finding the Third Proportional to 93,129.75 and 139,968

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Solution

The third proportional to 93,129.75 and 139,968 is: 210,362.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,129.75 : 139,968 = 139,968 : x
  2. Step 2: Convert to fraction form
    93,129.75/139,968 = 139,968/x
  3. Step 3: Cross multiply
    93,129.75x = 139,968 × 139,968
  4. Step 4: Simplify right side
    93,129.75x = 19,591,041,024
  5. Step 5: Solve for x
    x = 19,591,041,024/93,129.75
  6. Step 6: Final answer
    x = 210,362.86

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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.