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Finding the Fourth Proportional to 64,557.54, 89,064.44 and 47,601.92

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Solution

The fourth proportional to 64,557.54, 89,064.44 and 47,601.92 is: 65,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,557.54 : 89,064.44 = 47,601.92 : x
  2. Step 2: Convert to fraction form
    64,557.54/89,064.44 = 47,601.92/x
  3. Step 3: Cross multiply
    64,557.54x = 89,064.44 × 47,601.92
  4. Step 4: Simplify right side
    64,557.54x = 4,239,638,347.72
  5. Step 5: Solve for x
    x = 4,239,638,347.72/64,557.54
  6. Step 6: Final answer
    x = 65,672.24

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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.