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Finding the Fourth Proportional to 77,507.64, 116,252.82 and 21,351.96

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Solution

The fourth proportional to 77,507.64, 116,252.82 and 21,351.96 is: 32,025.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,507.64 : 116,252.82 = 21,351.96 : x
  2. Step 2: Convert to fraction form
    77,507.64/116,252.82 = 21,351.96/x
  3. Step 3: Cross multiply
    77,507.64x = 116,252.82 × 21,351.96
  4. Step 4: Simplify right side
    77,507.64x = 2,482,225,562.53
  5. Step 5: Solve for x
    x = 2,482,225,562.53/77,507.64
  6. Step 6: Final answer
    x = 32,025.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.