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Finding the Fourth Proportional to 178,992.89, 246,763.08 and 142,817.18

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Solution

The fourth proportional to 178,992.89, 246,763.08 and 142,817.18 is: 196,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,992.89 : 246,763.08 = 142,817.18 : x
  2. Step 2: Convert to fraction form
    178,992.89/246,763.08 = 142,817.18/x
  3. Step 3: Cross multiply
    178,992.89x = 246,763.08 × 142,817.18
  4. Step 4: Simplify right side
    178,992.89x = 35,242,006,381.57
  5. Step 5: Solve for x
    x = 35,242,006,381.57/178,992.89
  6. Step 6: Final answer
    x = 196,890.54

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1.5x scale

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.