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Finding the Fourth Proportional to 187,416.86, 258,634.49 and 101,375.89

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Solution

The fourth proportional to 187,416.86, 258,634.49 and 101,375.89 is: 139,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,416.86 : 258,634.49 = 101,375.89 : x
  2. Step 2: Convert to fraction form
    187,416.86/258,634.49 = 101,375.89/x
  3. Step 3: Cross multiply
    187,416.86x = 258,634.49 × 101,375.89
  4. Step 4: Simplify right side
    187,416.86x = 26,219,300,454.98
  5. Step 5: Solve for x
    x = 26,219,300,454.98/187,416.86
  6. Step 6: Final answer
    x = 139,898.31

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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.