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Finding the Fourth Proportional to 58,375.80, 87,644.80 and 40,564.50

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Solution

The fourth proportional to 58,375.80, 87,644.80 and 40,564.50 is: 60,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,375.80 : 87,644.80 = 40,564.50 : x
  2. Step 2: Convert to fraction form
    58,375.80/87,644.80 = 40,564.50/x
  3. Step 3: Cross multiply
    58,375.80x = 87,644.80 × 40,564.50
  4. Step 4: Simplify right side
    58,375.80x = 3,555,267,489.60
  5. Step 5: Solve for x
    x = 3,555,267,489.60/58,375.80
  6. Step 6: Final answer
    x = 60,903.11

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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.