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Finding the Fourth Proportional to 364,568.44, 546,878.93 and 139,928.87

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Solution

The fourth proportional to 364,568.44, 546,878.93 and 139,928.87 is: 209,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,568.44 : 546,878.93 = 139,928.87 : x
  2. Step 2: Convert to fraction form
    364,568.44/546,878.93 = 139,928.87/x
  3. Step 3: Cross multiply
    364,568.44x = 546,878.93 × 139,928.87
  4. Step 4: Simplify right side
    364,568.44x = 76,524,152,418.73
  5. Step 5: Solve for x
    x = 76,524,152,418.73/364,568.44
  6. Step 6: Final answer
    x = 209,903.39

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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.