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Finding the Fourth Proportional to 114,659.58, 171,956.16 and 39,776.70

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Solution

The fourth proportional to 114,659.58, 171,956.16 and 39,776.70 is: 59,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,659.58 : 171,956.16 = 39,776.70 : x
  2. Step 2: Convert to fraction form
    114,659.58/171,956.16 = 39,776.70/x
  3. Step 3: Cross multiply
    114,659.58x = 171,956.16 × 39,776.70
  4. Step 4: Simplify right side
    114,659.58x = 6,839,848,589.47
  5. Step 5: Solve for x
    x = 6,839,848,589.47/114,659.58
  6. Step 6: Final answer
    x = 59,653.53

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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.