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Finding the Fourth Proportional to 173,302.90, 239,029.95 and 109,579.30

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Solution

The fourth proportional to 173,302.90, 239,029.95 and 109,579.30 is: 151,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,302.90 : 239,029.95 = 109,579.30 : x
  2. Step 2: Convert to fraction form
    173,302.90/239,029.95 = 109,579.30/x
  3. Step 3: Cross multiply
    173,302.90x = 239,029.95 × 109,579.30
  4. Step 4: Simplify right side
    173,302.90x = 26,192,734,600.04
  5. Step 5: Solve for x
    x = 26,192,734,600.04/173,302.90
  6. Step 6: Final answer
    x = 151,138.47

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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.