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Finding the Fourth Proportional to 93,990.46, 140,992.14 and 37,831

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Solution

The fourth proportional to 93,990.46, 140,992.14 and 37,831 is: 56,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,990.46 : 140,992.14 = 37,831 : x
  2. Step 2: Convert to fraction form
    93,990.46/140,992.14 = 37,831/x
  3. Step 3: Cross multiply
    93,990.46x = 140,992.14 × 37,831
  4. Step 4: Simplify right side
    93,990.46x = 5,333,873,648.34
  5. Step 5: Solve for x
    x = 5,333,873,648.34/93,990.46
  6. Step 6: Final answer
    x = 56,749.10

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1.5x scale

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.