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Finding the Fourth Proportional to 114,579.73, 171,878.78 and 43,536.40

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Solution

The fourth proportional to 114,579.73, 171,878.78 and 43,536.40 is: 65,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,579.73 : 171,878.78 = 43,536.40 : x
  2. Step 2: Convert to fraction form
    114,579.73/171,878.78 = 43,536.40/x
  3. Step 3: Cross multiply
    114,579.73x = 171,878.78 × 43,536.40
  4. Step 4: Simplify right side
    114,579.73x = 7,482,982,996.74
  5. Step 5: Solve for x
    x = 7,482,982,996.74/114,579.73
  6. Step 6: Final answer
    x = 65,308.09

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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.