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Finding the Fourth Proportional to 64,299.74, 88,731.20 and 36,004.01

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Solution

The fourth proportional to 64,299.74, 88,731.20 and 36,004.01 is: 49,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,299.74 : 88,731.20 = 36,004.01 : x
  2. Step 2: Convert to fraction form
    64,299.74/88,731.20 = 36,004.01/x
  3. Step 3: Cross multiply
    64,299.74x = 88,731.20 × 36,004.01
  4. Step 4: Simplify right side
    64,299.74x = 3,194,678,832.09
  5. Step 5: Solve for x
    x = 3,194,678,832.09/64,299.74
  6. Step 6: Final answer
    x = 49,684.16

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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.