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Finding the Fourth Proportional to 115,682.58, 173,405.67 and 65,656.98

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Solution

The fourth proportional to 115,682.58, 173,405.67 and 65,656.98 is: 98,418.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,682.58 : 173,405.67 = 65,656.98 : x
  2. Step 2: Convert to fraction form
    115,682.58/173,405.67 = 65,656.98/x
  3. Step 3: Cross multiply
    115,682.58x = 173,405.67 × 65,656.98
  4. Step 4: Simplify right side
    115,682.58x = 11,385,292,607.08
  5. Step 5: Solve for x
    x = 11,385,292,607.08/115,682.58
  6. Step 6: Final answer
    x = 98,418.38

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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.