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Finding the Fourth Proportional to 178,811, 246,763.53 and 98,243.74

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Solution

The fourth proportional to 178,811, 246,763.53 and 98,243.74 is: 135,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,811 : 246,763.53 = 98,243.74 : x
  2. Step 2: Convert to fraction form
    178,811/246,763.53 = 98,243.74/x
  3. Step 3: Cross multiply
    178,811x = 246,763.53 × 98,243.74
  4. Step 4: Simplify right side
    178,811x = 24,242,971,591.58
  5. Step 5: Solve for x
    x = 24,242,971,591.58/178,811
  6. Step 6: Final answer
    x = 135,578.75

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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.