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Finding the Fourth Proportional to 158,609.88, 237,887.82 and 51,991.74

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Solution

The fourth proportional to 158,609.88, 237,887.82 and 51,991.74 is: 77,978.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,609.88 : 237,887.82 = 51,991.74 : x
  2. Step 2: Convert to fraction form
    158,609.88/237,887.82 = 51,991.74/x
  3. Step 3: Cross multiply
    158,609.88x = 237,887.82 × 51,991.74
  4. Step 4: Simplify right side
    158,609.88x = 12,368,201,686.61
  5. Step 5: Solve for x
    x = 12,368,201,686.61/158,609.88
  6. Step 6: Final answer
    x = 77,978.76

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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.