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Finding the Fourth Proportional to 178,431.81, 246,213.42 and 97,838.13

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Solution

The fourth proportional to 178,431.81, 246,213.42 and 97,838.13 is: 135,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,431.81 : 246,213.42 = 97,838.13 : x
  2. Step 2: Convert to fraction form
    178,431.81/246,213.42 = 97,838.13/x
  3. Step 3: Cross multiply
    178,431.81x = 246,213.42 × 97,838.13
  4. Step 4: Simplify right side
    178,431.81x = 24,089,060,593.70
  5. Step 5: Solve for x
    x = 24,089,060,593.70/178,431.81
  6. Step 6: Final answer
    x = 135,004.29

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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.