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Finding the Fourth Proportional to 173,564, 239,449.86 and 108,995.25

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Solution

The fourth proportional to 173,564, 239,449.86 and 108,995.25 is: 150,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,564 : 239,449.86 = 108,995.25 : x
  2. Step 2: Convert to fraction form
    173,564/239,449.86 = 108,995.25/x
  3. Step 3: Cross multiply
    173,564x = 239,449.86 × 108,995.25
  4. Step 4: Simplify right side
    173,564x = 26,098,897,353.17
  5. Step 5: Solve for x
    x = 26,098,897,353.17/173,564
  6. Step 6: Final answer
    x = 150,370.45

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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.