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Finding the Fourth Proportional to 160,668.81, 240,984.99 and 40,725.23

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Solution

The fourth proportional to 160,668.81, 240,984.99 and 40,725.23 is: 61,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,668.81 : 240,984.99 = 40,725.23 : x
  2. Step 2: Convert to fraction form
    160,668.81/240,984.99 = 40,725.23/x
  3. Step 3: Cross multiply
    160,668.81x = 240,984.99 × 40,725.23
  4. Step 4: Simplify right side
    160,668.81x = 9,814,167,939.37
  5. Step 5: Solve for x
    x = 9,814,167,939.37/160,668.81
  6. Step 6: Final answer
    x = 61,083.22

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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.