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Finding the Fourth Proportional to 67,564.58, 101,390.39 and 36,421.54

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Solution

The fourth proportional to 67,564.58, 101,390.39 and 36,421.54 is: 54,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,564.58 : 101,390.39 = 36,421.54 : x
  2. Step 2: Convert to fraction form
    67,564.58/101,390.39 = 36,421.54/x
  3. Step 3: Cross multiply
    67,564.58x = 101,390.39 × 36,421.54
  4. Step 4: Simplify right side
    67,564.58x = 3,692,794,145.00
  5. Step 5: Solve for x
    x = 3,692,794,145.00/67,564.58
  6. Step 6: Final answer
    x = 54,655.77

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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.