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Finding the Fourth Proportional to 316,443.52, 436,583.49 and 180,379.33

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Solution

The fourth proportional to 316,443.52, 436,583.49 and 180,379.33 is: 248,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,443.52 : 436,583.49 = 180,379.33 : x
  2. Step 2: Convert to fraction form
    316,443.52/436,583.49 = 180,379.33/x
  3. Step 3: Cross multiply
    316,443.52x = 436,583.49 × 180,379.33
  4. Step 4: Simplify right side
    316,443.52x = 78,750,637,415.26
  5. Step 5: Solve for x
    x = 78,750,637,415.26/316,443.52
  6. Step 6: Final answer
    x = 248,861.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.