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Finding the Fourth Proportional to 159,054.66, 238,621.26 and 79,130.58

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Solution

The fourth proportional to 159,054.66, 238,621.26 and 79,130.58 is: 118,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,054.66 : 238,621.26 = 79,130.58 : x
  2. Step 2: Convert to fraction form
    159,054.66/238,621.26 = 79,130.58/x
  3. Step 3: Cross multiply
    159,054.66x = 238,621.26 × 79,130.58
  4. Step 4: Simplify right side
    159,054.66x = 18,882,238,704.13
  5. Step 5: Solve for x
    x = 18,882,238,704.13/159,054.66
  6. Step 6: Final answer
    x = 118,715.41

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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.