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Finding the Fourth Proportional to 306,980.38, 460,487.63 and 93,780.69

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Solution

The fourth proportional to 306,980.38, 460,487.63 and 93,780.69 is: 140,676.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,980.38 : 460,487.63 = 93,780.69 : x
  2. Step 2: Convert to fraction form
    306,980.38/460,487.63 = 93,780.69/x
  3. Step 3: Cross multiply
    306,980.38x = 460,487.63 × 93,780.69
  4. Step 4: Simplify right side
    306,980.38x = 43,184,846,185.49
  5. Step 5: Solve for x
    x = 43,184,846,185.49/306,980.38
  6. Step 6: Final answer
    x = 140,676.24

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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.