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Finding the Fourth Proportional to 64,367.92, 96,419.04 and 47,746.72

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Solution

The fourth proportional to 64,367.92, 96,419.04 and 47,746.72 is: 71,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,367.92 : 96,419.04 = 47,746.72 : x
  2. Step 2: Convert to fraction form
    64,367.92/96,419.04 = 47,746.72/x
  3. Step 3: Cross multiply
    64,367.92x = 96,419.04 × 47,746.72
  4. Step 4: Simplify right side
    64,367.92x = 4,603,692,905.55
  5. Step 5: Solve for x
    x = 4,603,692,905.55/64,367.92
  6. Step 6: Final answer
    x = 71,521.54

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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.