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Finding the Fourth Proportional to 159,328.79, 239,029.19 and 52,712.49

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Solution

The fourth proportional to 159,328.79, 239,029.19 and 52,712.49 is: 79,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,328.79 : 239,029.19 = 52,712.49 : x
  2. Step 2: Convert to fraction form
    159,328.79/239,029.19 = 52,712.49/x
  3. Step 3: Cross multiply
    159,328.79x = 239,029.19 × 52,712.49
  4. Step 4: Simplify right side
    159,328.79x = 12,599,823,524.02
  5. Step 5: Solve for x
    x = 12,599,823,524.02/159,328.79
  6. Step 6: Final answer
    x = 79,080.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.