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Finding the Fourth Proportional to 173,252.31, 239,076.93 and 100,648.77

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Solution

The fourth proportional to 173,252.31, 239,076.93 and 100,648.77 is: 138,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,252.31 : 239,076.93 = 100,648.77 : x
  2. Step 2: Convert to fraction form
    173,252.31/239,076.93 = 100,648.77/x
  3. Step 3: Cross multiply
    173,252.31x = 239,076.93 × 100,648.77
  4. Step 4: Simplify right side
    173,252.31x = 24,062,798,939.88
  5. Step 5: Solve for x
    x = 24,062,798,939.88/173,252.31
  6. Step 6: Final answer
    x = 138,888.76

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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.