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Finding the Fourth Proportional to 306,990.57, 460,475.45 and 93,749.86

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Solution

The fourth proportional to 306,990.57, 460,475.45 and 93,749.86 is: 140,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,990.57 : 460,475.45 = 93,749.86 : x
  2. Step 2: Convert to fraction form
    306,990.57/460,475.45 = 93,749.86/x
  3. Step 3: Cross multiply
    306,990.57x = 460,475.45 × 93,749.86
  4. Step 4: Simplify right side
    306,990.57x = 43,169,508,970.94
  5. Step 5: Solve for x
    x = 43,169,508,970.94/306,990.57
  6. Step 6: Final answer
    x = 140,621.61

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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.