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Finding the Fourth Proportional to 301,267.52, 451,904.76 and 90,907.28

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Solution

The fourth proportional to 301,267.52, 451,904.76 and 90,907.28 is: 136,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,267.52 : 451,904.76 = 90,907.28 : x
  2. Step 2: Convert to fraction form
    301,267.52/451,904.76 = 90,907.28/x
  3. Step 3: Cross multiply
    301,267.52x = 451,904.76 × 90,907.28
  4. Step 4: Simplify right side
    301,267.52x = 41,081,432,550.65
  5. Step 5: Solve for x
    x = 41,081,432,550.65/301,267.52
  6. Step 6: Final answer
    x = 136,361.97

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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.