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Finding the Fourth Proportional to 244,276.39, 366,415.41 and 86,509.45

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Solution

The fourth proportional to 244,276.39, 366,415.41 and 86,509.45 is: 129,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,276.39 : 366,415.41 = 86,509.45 : x
  2. Step 2: Convert to fraction form
    244,276.39/366,415.41 = 86,509.45/x
  3. Step 3: Cross multiply
    244,276.39x = 366,415.41 × 86,509.45
  4. Step 4: Simplify right side
    244,276.39x = 31,698,395,590.62
  5. Step 5: Solve for x
    x = 31,698,395,590.62/244,276.39
  6. Step 6: Final answer
    x = 129,764.47

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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.