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Finding the Fourth Proportional to 186,558.90, 279,755.79 and 53,408.82

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Solution

The fourth proportional to 186,558.90, 279,755.79 and 53,408.82 is: 80,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,558.90 : 279,755.79 = 53,408.82 : x
  2. Step 2: Convert to fraction form
    186,558.90/279,755.79 = 53,408.82/x
  3. Step 3: Cross multiply
    186,558.90x = 279,755.79 × 53,408.82
  4. Step 4: Simplify right side
    186,558.90x = 14,941,426,632.07
  5. Step 5: Solve for x
    x = 14,941,426,632.07/186,558.90
  6. Step 6: Final answer
    x = 80,089.59

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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.