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Finding the Fourth Proportional to 158,546.88, 237,790.08 and 79,639.20

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Solution

The fourth proportional to 158,546.88, 237,790.08 and 79,639.20 is: 119,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,546.88 : 237,790.08 = 79,639.20 : x
  2. Step 2: Convert to fraction form
    158,546.88/237,790.08 = 79,639.20/x
  3. Step 3: Cross multiply
    158,546.88x = 237,790.08 × 79,639.20
  4. Step 4: Simplify right side
    158,546.88x = 18,937,411,739.14
  5. Step 5: Solve for x
    x = 18,937,411,739.14/158,546.88
  6. Step 6: Final answer
    x = 119,443.61

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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.