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Finding the Fourth Proportional to 199,797.84, 275,709.96 and 114,916.32

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Solution

The fourth proportional to 199,797.84, 275,709.96 and 114,916.32 is: 158,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,797.84 : 275,709.96 = 114,916.32 : x
  2. Step 2: Convert to fraction form
    199,797.84/275,709.96 = 114,916.32/x
  3. Step 3: Cross multiply
    199,797.84x = 275,709.96 × 114,916.32
  4. Step 4: Simplify right side
    199,797.84x = 31,683,573,990.55
  5. Step 5: Solve for x
    x = 31,683,573,990.55/199,797.84
  6. Step 6: Final answer
    x = 158,578.16

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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.