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Finding the Fourth Proportional to 64,203.76, 96,308.60 and 45,567.28

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Solution

The fourth proportional to 64,203.76, 96,308.60 and 45,567.28 is: 68,353.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,203.76 : 96,308.60 = 45,567.28 : x
  2. Step 2: Convert to fraction form
    64,203.76/96,308.60 = 45,567.28/x
  3. Step 3: Cross multiply
    64,203.76x = 96,308.60 × 45,567.28
  4. Step 4: Simplify right side
    64,203.76x = 4,388,520,942.61
  5. Step 5: Solve for x
    x = 4,388,520,942.61/64,203.76
  6. Step 6: Final answer
    x = 68,353.02

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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.