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Finding the Fourth Proportional to 49,367.22, 73,985.22 and 42,762.48

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Solution

The fourth proportional to 49,367.22, 73,985.22 and 42,762.48 is: 64,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,367.22 : 73,985.22 = 42,762.48 : x
  2. Step 2: Convert to fraction form
    49,367.22/73,985.22 = 42,762.48/x
  3. Step 3: Cross multiply
    49,367.22x = 73,985.22 × 42,762.48
  4. Step 4: Simplify right side
    49,367.22x = 3,163,791,490.55
  5. Step 5: Solve for x
    x = 3,163,791,490.55/49,367.22
  6. Step 6: Final answer
    x = 64,086.89

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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.