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Finding the Fourth Proportional to 187,561.88, 258,835.59 and 102,679.14

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Solution

The fourth proportional to 187,561.88, 258,835.59 and 102,679.14 is: 141,697.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,561.88 : 258,835.59 = 102,679.14 : x
  2. Step 2: Convert to fraction form
    187,561.88/258,835.59 = 102,679.14/x
  3. Step 3: Cross multiply
    187,561.88x = 258,835.59 × 102,679.14
  4. Step 4: Simplify right side
    187,561.88x = 26,577,015,782.59
  5. Step 5: Solve for x
    x = 26,577,015,782.59/187,561.88
  6. Step 6: Final answer
    x = 141,697.32

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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.