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Finding the Fourth Proportional to 70,433.01, 105,474.25 and 49,274.00

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Solution

The fourth proportional to 70,433.01, 105,474.25 and 49,274.00 is: 73,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,433.01 : 105,474.25 = 49,274.00 : x
  2. Step 2: Convert to fraction form
    70,433.01/105,474.25 = 49,274.00/x
  3. Step 3: Cross multiply
    70,433.01x = 105,474.25 × 49,274.00
  4. Step 4: Simplify right side
    70,433.01x = 5,197,137,939.47
  5. Step 5: Solve for x
    x = 5,197,137,939.47/70,433.01
  6. Step 6: Final answer
    x = 73,788.39

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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.