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Finding the Fourth Proportional to 93,647.47, 140,441.92 and 31,303.39

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Solution

The fourth proportional to 93,647.47, 140,441.92 and 31,303.39 is: 46,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,647.47 : 140,441.92 = 31,303.39 : x
  2. Step 2: Convert to fraction form
    93,647.47/140,441.92 = 31,303.39/x
  3. Step 3: Cross multiply
    93,647.47x = 140,441.92 × 31,303.39
  4. Step 4: Simplify right side
    93,647.47x = 4,396,308,194.11
  5. Step 5: Solve for x
    x = 4,396,308,194.11/93,647.47
  6. Step 6: Final answer
    x = 46,945.30

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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.