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Finding the Fourth Proportional to 382,453.92, 573,718.08 and 139,361.04

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Solution

The fourth proportional to 382,453.92, 573,718.08 and 139,361.04 is: 209,055.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,453.92 : 573,718.08 = 139,361.04 : x
  2. Step 2: Convert to fraction form
    382,453.92/573,718.08 = 139,361.04/x
  3. Step 3: Cross multiply
    382,453.92x = 573,718.08 × 139,361.04
  4. Step 4: Simplify right side
    382,453.92x = 79,953,948,295.60
  5. Step 5: Solve for x
    x = 79,953,948,295.60/382,453.92
  6. Step 6: Final answer
    x = 209,055.12

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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.