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Finding the Fourth Proportional to 79,226.46, 109,332.50 and 45,692.46

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Solution

The fourth proportional to 79,226.46, 109,332.50 and 45,692.46 is: 63,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,226.46 : 109,332.50 = 45,692.46 : x
  2. Step 2: Convert to fraction form
    79,226.46/109,332.50 = 45,692.46/x
  3. Step 3: Cross multiply
    79,226.46x = 109,332.50 × 45,692.46
  4. Step 4: Simplify right side
    79,226.46x = 4,995,670,654.49
  5. Step 5: Solve for x
    x = 4,995,670,654.49/79,226.46
  6. Step 6: Final answer
    x = 63,055.58

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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.