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Finding the Fourth Proportional to 93,195.93, 139,693.35 and 45,755.85

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Solution

The fourth proportional to 93,195.93, 139,693.35 and 45,755.85 is: 68,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,195.93 : 139,693.35 = 45,755.85 : x
  2. Step 2: Convert to fraction form
    93,195.93/139,693.35 = 45,755.85/x
  3. Step 3: Cross multiply
    93,195.93x = 139,693.35 × 45,755.85
  4. Step 4: Simplify right side
    93,195.93x = 6,391,787,968.60
  5. Step 5: Solve for x
    x = 6,391,787,968.60/93,195.93
  6. Step 6: Final answer
    x = 68,584.41

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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.