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Finding the Fourth Proportional to 159,376.40, 239,008.84 and 47,026.80

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Solution

The fourth proportional to 159,376.40, 239,008.84 and 47,026.80 is: 70,523.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,376.40 : 239,008.84 = 47,026.80 : x
  2. Step 2: Convert to fraction form
    159,376.40/239,008.84 = 47,026.80/x
  3. Step 3: Cross multiply
    159,376.40x = 239,008.84 × 47,026.80
  4. Step 4: Simplify right side
    159,376.40x = 11,239,820,916.91
  5. Step 5: Solve for x
    x = 11,239,820,916.91/159,376.40
  6. Step 6: Final answer
    x = 70,523.75

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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.