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Finding the Fourth Proportional to 173,859.22, 239,963.07 and 105,898.60

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Solution

The fourth proportional to 173,859.22, 239,963.07 and 105,898.60 is: 146,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,859.22 : 239,963.07 = 105,898.60 : x
  2. Step 2: Convert to fraction form
    173,859.22/239,963.07 = 105,898.60/x
  3. Step 3: Cross multiply
    173,859.22x = 239,963.07 × 105,898.60
  4. Step 4: Simplify right side
    173,859.22x = 25,411,753,164.70
  5. Step 5: Solve for x
    x = 25,411,753,164.70/173,859.22
  6. Step 6: Final answer
    x = 146,162.82

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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.