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Finding the Fourth Proportional to 178,486.56, 246,318 and 102,004.32

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Solution

The fourth proportional to 178,486.56, 246,318 and 102,004.32 is: 140,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,486.56 : 246,318 = 102,004.32 : x
  2. Step 2: Convert to fraction form
    178,486.56/246,318 = 102,004.32/x
  3. Step 3: Cross multiply
    178,486.56x = 246,318 × 102,004.32
  4. Step 4: Simplify right side
    178,486.56x = 25,125,500,093.76
  5. Step 5: Solve for x
    x = 25,125,500,093.76/178,486.56
  6. Step 6: Final answer
    x = 140,769.70

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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.