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Finding the Fourth Proportional to 187,671, 258,986.67 and 101,630.02

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Solution

The fourth proportional to 187,671, 258,986.67 and 101,630.02 is: 140,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,671 : 258,986.67 = 101,630.02 : x
  2. Step 2: Convert to fraction form
    187,671/258,986.67 = 101,630.02/x
  3. Step 3: Cross multiply
    187,671x = 258,986.67 × 101,630.02
  4. Step 4: Simplify right side
    187,671x = 26,320,820,451.83
  5. Step 5: Solve for x
    x = 26,320,820,451.83/187,671
  6. Step 6: Final answer
    x = 140,249.80

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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.