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Finding the Fourth Proportional to 240,735.40, 361,160.70 and 115,973.80

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Solution

The fourth proportional to 240,735.40, 361,160.70 and 115,973.80 is: 173,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,735.40 : 361,160.70 = 115,973.80 : x
  2. Step 2: Convert to fraction form
    240,735.40/361,160.70 = 115,973.80/x
  3. Step 3: Cross multiply
    240,735.40x = 361,160.70 × 115,973.80
  4. Step 4: Simplify right side
    240,735.40x = 41,885,178,789.66
  5. Step 5: Solve for x
    x = 41,885,178,789.66/240,735.40
  6. Step 6: Final answer
    x = 173,988.45

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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.