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Finding the Fourth Proportional to 64,388.88, 88,860.92 and 36,096.40

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Solution

The fourth proportional to 64,388.88, 88,860.92 and 36,096.40 is: 49,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,388.88 : 88,860.92 = 36,096.40 : x
  2. Step 2: Convert to fraction form
    64,388.88/88,860.92 = 36,096.40/x
  3. Step 3: Cross multiply
    64,388.88x = 88,860.92 × 36,096.40
  4. Step 4: Simplify right side
    64,388.88x = 3,207,559,312.69
  5. Step 5: Solve for x
    x = 3,207,559,312.69/64,388.88
  6. Step 6: Final answer
    x = 49,815.42

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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.