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Finding the Fourth Proportional to 93,003, 139,504.50 and 30,678.36

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Solution

The fourth proportional to 93,003, 139,504.50 and 30,678.36 is: 46,017.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,003 : 139,504.50 = 30,678.36 : x
  2. Step 2: Convert to fraction form
    93,003/139,504.50 = 30,678.36/x
  3. Step 3: Cross multiply
    93,003x = 139,504.50 × 30,678.36
  4. Step 4: Simplify right side
    93,003x = 4,279,769,272.62
  5. Step 5: Solve for x
    x = 4,279,769,272.62/93,003
  6. Step 6: Final answer
    x = 46,017.54

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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.