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Finding the Fourth Proportional to 363,744.07, 545,653.46 and 139,292.26

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Solution

The fourth proportional to 363,744.07, 545,653.46 and 139,292.26 is: 208,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,744.07 : 545,653.46 = 139,292.26 : x
  2. Step 2: Convert to fraction form
    363,744.07/545,653.46 = 139,292.26/x
  3. Step 3: Cross multiply
    363,744.07x = 545,653.46 × 139,292.26
  4. Step 4: Simplify right side
    363,744.07x = 76,005,302,604.32
  5. Step 5: Solve for x
    x = 76,005,302,604.32/363,744.07
  6. Step 6: Final answer
    x = 208,952.69

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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.