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Finding the Fourth Proportional to 178,451.60, 246,263.56 and 97,879.78

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Solution

The fourth proportional to 178,451.60, 246,263.56 and 97,879.78 is: 135,074.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,451.60 : 246,263.56 = 97,879.78 : x
  2. Step 2: Convert to fraction form
    178,451.60/246,263.56 = 97,879.78/x
  3. Step 3: Cross multiply
    178,451.60x = 246,263.56 × 97,879.78
  4. Step 4: Simplify right side
    178,451.60x = 24,104,223,074.82
  5. Step 5: Solve for x
    x = 24,104,223,074.82/178,451.60
  6. Step 6: Final answer
    x = 135,074.29

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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.