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Finding the Fourth Proportional to 306,646.74, 459,937.75 and 82,029.85

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Solution

The fourth proportional to 306,646.74, 459,937.75 and 82,029.85 is: 123,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,646.74 : 459,937.75 = 82,029.85 : x
  2. Step 2: Convert to fraction form
    306,646.74/459,937.75 = 82,029.85/x
  3. Step 3: Cross multiply
    306,646.74x = 459,937.75 × 82,029.85
  4. Step 4: Simplify right side
    306,646.74x = 37,728,624,641.84
  5. Step 5: Solve for x
    x = 37,728,624,641.84/306,646.74
  6. Step 6: Final answer
    x = 123,036.12

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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.