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Finding the Fourth Proportional to 555,142.50, 832,736.79 and 161,158.50

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Solution

The fourth proportional to 555,142.50, 832,736.79 and 161,158.50 is: 241,744.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,142.50 : 832,736.79 = 161,158.50 : x
  2. Step 2: Convert to fraction form
    555,142.50/832,736.79 = 161,158.50/x
  3. Step 3: Cross multiply
    555,142.50x = 832,736.79 × 161,158.50
  4. Step 4: Simplify right side
    555,142.50x = 134,202,611,971.22
  5. Step 5: Solve for x
    x = 134,202,611,971.22/555,142.50
  6. Step 6: Final answer
    x = 241,744.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.