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Finding the Fourth Proportional to 306,590.94, 459,942.03 and 126,676.71

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Solution

The fourth proportional to 306,590.94, 459,942.03 and 126,676.71 is: 190,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,590.94 : 459,942.03 = 126,676.71 : x
  2. Step 2: Convert to fraction form
    306,590.94/459,942.03 = 126,676.71/x
  3. Step 3: Cross multiply
    306,590.94x = 459,942.03 × 126,676.71
  4. Step 4: Simplify right side
    306,590.94x = 58,263,943,151.12
  5. Step 5: Solve for x
    x = 58,263,943,151.12/306,590.94
  6. Step 6: Final answer
    x = 190,038.05

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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.