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Finding the Fourth Proportional to 70,271.01, 105,237.62 and 40,194.11

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Solution

The fourth proportional to 70,271.01, 105,237.62 and 40,194.11 is: 60,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,271.01 : 105,237.62 = 40,194.11 : x
  2. Step 2: Convert to fraction form
    70,271.01/105,237.62 = 40,194.11/x
  3. Step 3: Cross multiply
    70,271.01x = 105,237.62 × 40,194.11
  4. Step 4: Simplify right side
    70,271.01x = 4,229,931,747.26
  5. Step 5: Solve for x
    x = 4,229,931,747.26/70,271.01
  6. Step 6: Final answer
    x = 60,194.55

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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.