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Finding the Fourth Proportional to 74,596.80, 102,943.60 and 41,062.80

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Solution

The fourth proportional to 74,596.80, 102,943.60 and 41,062.80 is: 56,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,596.80 : 102,943.60 = 41,062.80 : x
  2. Step 2: Convert to fraction form
    74,596.80/102,943.60 = 41,062.80/x
  3. Step 3: Cross multiply
    74,596.80x = 102,943.60 × 41,062.80
  4. Step 4: Simplify right side
    74,596.80x = 4,227,152,458.08
  5. Step 5: Solve for x
    x = 4,227,152,458.08/74,596.80
  6. Step 6: Final answer
    x = 56,666.67

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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.