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Finding the Fourth Proportional to 304,331.20, 456,496.80 and 82,715.20

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Solution

The fourth proportional to 304,331.20, 456,496.80 and 82,715.20 is: 124,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,331.20 : 456,496.80 = 82,715.20 : x
  2. Step 2: Convert to fraction form
    304,331.20/456,496.80 = 82,715.20/x
  3. Step 3: Cross multiply
    304,331.20x = 456,496.80 × 82,715.20
  4. Step 4: Simplify right side
    304,331.20x = 37,759,224,111.36
  5. Step 5: Solve for x
    x = 37,759,224,111.36/304,331.20
  6. Step 6: Final answer
    x = 124,072.80

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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.