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Finding the Fourth Proportional to 173,112, 238,894.56 and 122,898.48

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Solution

The fourth proportional to 173,112, 238,894.56 and 122,898.48 is: 169,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,112 : 238,894.56 = 122,898.48 : x
  2. Step 2: Convert to fraction form
    173,112/238,894.56 = 122,898.48/x
  3. Step 3: Cross multiply
    173,112x = 238,894.56 × 122,898.48
  4. Step 4: Simplify right side
    173,112x = 29,359,778,304.27
  5. Step 5: Solve for x
    x = 29,359,778,304.27/173,112
  6. Step 6: Final answer
    x = 169,599.90

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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.