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Finding the Fourth Proportional to 173,072.88, 238,851.72 and 97,619.76

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Solution

The fourth proportional to 173,072.88, 238,851.72 and 97,619.76 is: 134,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,072.88 : 238,851.72 = 97,619.76 : x
  2. Step 2: Convert to fraction form
    173,072.88/238,851.72 = 97,619.76/x
  3. Step 3: Cross multiply
    173,072.88x = 238,851.72 × 97,619.76
  4. Step 4: Simplify right side
    173,072.88x = 23,316,647,581.99
  5. Step 5: Solve for x
    x = 23,316,647,581.99/173,072.88
  6. Step 6: Final answer
    x = 134,721.56

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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.