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Finding the Fourth Proportional to 70,296.75, 97,021.04 and 40,506.03

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Solution

The fourth proportional to 70,296.75, 97,021.04 and 40,506.03 is: 55,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,296.75 : 97,021.04 = 40,506.03 : x
  2. Step 2: Convert to fraction form
    70,296.75/97,021.04 = 40,506.03/x
  3. Step 3: Cross multiply
    70,296.75x = 97,021.04 × 40,506.03
  4. Step 4: Simplify right side
    70,296.75x = 3,929,936,954.34
  5. Step 5: Solve for x
    x = 3,929,936,954.34/70,296.75
  6. Step 6: Final answer
    x = 55,904.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.