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Finding the Fourth Proportional to 159,526.88, 239,296.80 and 70,763.84

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Solution

The fourth proportional to 159,526.88, 239,296.80 and 70,763.84 is: 106,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,526.88 : 239,296.80 = 70,763.84 : x
  2. Step 2: Convert to fraction form
    159,526.88/239,296.80 = 70,763.84/x
  3. Step 3: Cross multiply
    159,526.88x = 239,296.80 × 70,763.84
  4. Step 4: Simplify right side
    159,526.88x = 16,933,560,467.71
  5. Step 5: Solve for x
    x = 16,933,560,467.71/159,526.88
  6. Step 6: Final answer
    x = 106,148.63

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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.