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Finding the Fourth Proportional to 115,956.77, 173,937.98 and 65,677.64

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Solution

The fourth proportional to 115,956.77, 173,937.98 and 65,677.64 is: 98,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,956.77 : 173,937.98 = 65,677.64 : x
  2. Step 2: Convert to fraction form
    115,956.77/173,937.98 = 65,677.64/x
  3. Step 3: Cross multiply
    115,956.77x = 173,937.98 × 65,677.64
  4. Step 4: Simplify right side
    115,956.77x = 11,423,835,327.27
  5. Step 5: Solve for x
    x = 11,423,835,327.27/115,956.77
  6. Step 6: Final answer
    x = 98,518.06

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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.