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Finding the Fourth Proportional to 239,635.02, 359,498.61 and 91,879.50

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Solution

The fourth proportional to 239,635.02, 359,498.61 and 91,879.50 is: 137,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,635.02 : 359,498.61 = 91,879.50 : x
  2. Step 2: Convert to fraction form
    239,635.02/359,498.61 = 91,879.50/x
  3. Step 3: Cross multiply
    239,635.02x = 359,498.61 × 91,879.50
  4. Step 4: Simplify right side
    239,635.02x = 33,030,552,537.50
  5. Step 5: Solve for x
    x = 33,030,552,537.50/239,635.02
  6. Step 6: Final answer
    x = 137,836.92

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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.