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Finding the Fourth Proportional to 64,400.96, 88,868.22 and 36,102.80

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Solution

The fourth proportional to 64,400.96, 88,868.22 and 36,102.80 is: 49,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,400.96 : 88,868.22 = 36,102.80 : x
  2. Step 2: Convert to fraction form
    64,400.96/88,868.22 = 36,102.80/x
  3. Step 3: Cross multiply
    64,400.96x = 88,868.22 × 36,102.80
  4. Step 4: Simplify right side
    64,400.96x = 3,208,391,573.02
  5. Step 5: Solve for x
    x = 3,208,391,573.02/64,400.96
  6. Step 6: Final answer
    x = 49,819.00

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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.