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Finding the Fourth Proportional to 63,343.54, 87,405.24 and 53,821.99

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Solution

The fourth proportional to 63,343.54, 87,405.24 and 53,821.99 is: 74,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,343.54 : 87,405.24 = 53,821.99 : x
  2. Step 2: Convert to fraction form
    63,343.54/87,405.24 = 53,821.99/x
  3. Step 3: Cross multiply
    63,343.54x = 87,405.24 × 53,821.99
  4. Step 4: Simplify right side
    63,343.54x = 4,704,323,953.23
  5. Step 5: Solve for x
    x = 4,704,323,953.23/63,343.54
  6. Step 6: Final answer
    x = 74,266.83

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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.