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Finding the Fourth Proportional to 64,346.92, 96,387.54 and 47,725.72

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Solution

The fourth proportional to 64,346.92, 96,387.54 and 47,725.72 is: 71,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,346.92 : 96,387.54 = 47,725.72 : x
  2. Step 2: Convert to fraction form
    64,346.92/96,387.54 = 47,725.72/x
  3. Step 3: Cross multiply
    64,346.92x = 96,387.54 × 47,725.72
  4. Step 4: Simplify right side
    64,346.92x = 4,600,164,745.53
  5. Step 5: Solve for x
    x = 4,600,164,745.53/64,346.92
  6. Step 6: Final answer
    x = 71,490.05

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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.