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Finding the Fourth Proportional to 124,987.41, 187,245.54 and 61,733.43

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Solution

The fourth proportional to 124,987.41, 187,245.54 and 61,733.43 is: 92,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987.41 : 187,245.54 = 61,733.43 : x
  2. Step 2: Convert to fraction form
    124,987.41/187,245.54 = 61,733.43/x
  3. Step 3: Cross multiply
    124,987.41x = 187,245.54 × 61,733.43
  4. Step 4: Simplify right side
    124,987.41x = 11,559,309,436.40
  5. Step 5: Solve for x
    x = 11,559,309,436.40/124,987.41
  6. Step 6: Final answer
    x = 92,483.79

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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.