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Finding the Fourth Proportional to 239,252.80, 358,879.20 and 73,019.20

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Solution

The fourth proportional to 239,252.80, 358,879.20 and 73,019.20 is: 109,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,252.80 : 358,879.20 = 73,019.20 : x
  2. Step 2: Convert to fraction form
    239,252.80/358,879.20 = 73,019.20/x
  3. Step 3: Cross multiply
    239,252.80x = 358,879.20 × 73,019.20
  4. Step 4: Simplify right side
    239,252.80x = 26,205,072,080.64
  5. Step 5: Solve for x
    x = 26,205,072,080.64/239,252.80
  6. Step 6: Final answer
    x = 109,528.80

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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.