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Finding the Fourth Proportional to 93,770.87, 140,660.83 and 30,590.87

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Solution

The fourth proportional to 93,770.87, 140,660.83 and 30,590.87 is: 45,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,770.87 : 140,660.83 = 30,590.87 : x
  2. Step 2: Convert to fraction form
    93,770.87/140,660.83 = 30,590.87/x
  3. Step 3: Cross multiply
    93,770.87x = 140,660.83 × 30,590.87
  4. Step 4: Simplify right side
    93,770.87x = 4,302,936,461.32
  5. Step 5: Solve for x
    x = 4,302,936,461.32/93,770.87
  6. Step 6: Final answer
    x = 45,887.78

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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.