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Finding the Fourth Proportional to 64,450.64, 88,935.72 and 36,154.64

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Solution

The fourth proportional to 64,450.64, 88,935.72 and 36,154.64 is: 49,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,450.64 : 88,935.72 = 36,154.64 : x
  2. Step 2: Convert to fraction form
    64,450.64/88,935.72 = 36,154.64/x
  3. Step 3: Cross multiply
    64,450.64x = 88,935.72 × 36,154.64
  4. Step 4: Simplify right side
    64,450.64x = 3,215,438,939.74
  5. Step 5: Solve for x
    x = 3,215,438,939.74/64,450.64
  6. Step 6: Final answer
    x = 49,889.95

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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.