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Finding the Fourth Proportional to 70,485.94, 97,269.69 and 40,271.03

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Solution

The fourth proportional to 70,485.94, 97,269.69 and 40,271.03 is: 55,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.94 : 97,269.69 = 40,271.03 : x
  2. Step 2: Convert to fraction form
    70,485.94/97,269.69 = 40,271.03/x
  3. Step 3: Cross multiply
    70,485.94x = 97,269.69 × 40,271.03
  4. Step 4: Simplify right side
    70,485.94x = 3,917,150,604.08
  5. Step 5: Solve for x
    x = 3,917,150,604.08/70,485.94
  6. Step 6: Final answer
    x = 55,573.50

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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.