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Finding the Fourth Proportional to 160,641.75, 221,702.46 and 92,674.05

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Solution

The fourth proportional to 160,641.75, 221,702.46 and 92,674.05 is: 127,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,641.75 : 221,702.46 = 92,674.05 : x
  2. Step 2: Convert to fraction form
    160,641.75/221,702.46 = 92,674.05/x
  3. Step 3: Cross multiply
    160,641.75x = 221,702.46 × 92,674.05
  4. Step 4: Simplify right side
    160,641.75x = 20,546,064,863.16
  5. Step 5: Solve for x
    x = 20,546,064,863.16/160,641.75
  6. Step 6: Final answer
    x = 127,899.91

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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.