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Finding the Fourth Proportional to 73,157.60, 100,964.91 and 52,756.43

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Solution

The fourth proportional to 73,157.60, 100,964.91 and 52,756.43 is: 72,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.60 : 100,964.91 = 52,756.43 : x
  2. Step 2: Convert to fraction form
    73,157.60/100,964.91 = 52,756.43/x
  3. Step 3: Cross multiply
    73,157.60x = 100,964.91 × 52,756.43
  4. Step 4: Simplify right side
    73,157.60x = 5,326,548,206.87
  5. Step 5: Solve for x
    x = 5,326,548,206.87/73,157.60
  6. Step 6: Final answer
    x = 72,809.23

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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.