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Finding the Fourth Proportional to 114,660.60, 172,020.59 and 43,584.45

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Solution

The fourth proportional to 114,660.60, 172,020.59 and 43,584.45 is: 65,387.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,660.60 : 172,020.59 = 43,584.45 : x
  2. Step 2: Convert to fraction form
    114,660.60/172,020.59 = 43,584.45/x
  3. Step 3: Cross multiply
    114,660.60x = 172,020.59 × 43,584.45
  4. Step 4: Simplify right side
    114,660.60x = 7,497,422,803.83
  5. Step 5: Solve for x
    x = 7,497,422,803.83/114,660.60
  6. Step 6: Final answer
    x = 65,387.96

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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.