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Finding the Fourth Proportional to 250,817.88, 376,005.28 and 191,916.48

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Solution

The fourth proportional to 250,817.88, 376,005.28 and 191,916.48 is: 287,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,817.88 : 376,005.28 = 191,916.48 : x
  2. Step 2: Convert to fraction form
    250,817.88/376,005.28 = 191,916.48/x
  3. Step 3: Cross multiply
    250,817.88x = 376,005.28 × 191,916.48
  4. Step 4: Simplify right side
    250,817.88x = 72,161,609,799.01
  5. Step 5: Solve for x
    x = 72,161,609,799.01/250,817.88
  6. Step 6: Final answer
    x = 287,705.21

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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.