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Finding the Fourth Proportional to 77,366.93, 116,037.93 and 21,193.90

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Solution

The fourth proportional to 77,366.93, 116,037.93 and 21,193.90 is: 31,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,366.93 : 116,037.93 = 21,193.90 : x
  2. Step 2: Convert to fraction form
    77,366.93/116,037.93 = 21,193.90/x
  3. Step 3: Cross multiply
    77,366.93x = 116,037.93 × 21,193.90
  4. Step 4: Simplify right side
    77,366.93x = 2,459,295,994.53
  5. Step 5: Solve for x
    x = 2,459,295,994.53/77,366.93
  6. Step 6: Final answer
    x = 31,787.43

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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.