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Finding the Fourth Proportional to 186,508.25, 279,762.38 and 53,388.98

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Solution

The fourth proportional to 186,508.25, 279,762.38 and 53,388.98 is: 80,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,508.25 : 279,762.38 = 53,388.98 : x
  2. Step 2: Convert to fraction form
    186,508.25/279,762.38 = 53,388.98/x
  3. Step 3: Cross multiply
    186,508.25x = 279,762.38 × 53,388.98
  4. Step 4: Simplify right side
    186,508.25x = 14,936,228,110.57
  5. Step 5: Solve for x
    x = 14,936,228,110.57/186,508.25
  6. Step 6: Final answer
    x = 80,083.47

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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.