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Finding the Fourth Proportional to 169,188.90, 253,787.40 and 56,872.95

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Solution

The fourth proportional to 169,188.90, 253,787.40 and 56,872.95 is: 85,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,188.90 : 253,787.40 = 56,872.95 : x
  2. Step 2: Convert to fraction form
    169,188.90/253,787.40 = 56,872.95/x
  3. Step 3: Cross multiply
    169,188.90x = 253,787.40 × 56,872.95
  4. Step 4: Simplify right side
    169,188.90x = 14,433,638,110.83
  5. Step 5: Solve for x
    x = 14,433,638,110.83/169,188.90
  6. Step 6: Final answer
    x = 85,310.79

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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.