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Finding the Fourth Proportional to 382,262.40, 573,247.80 and 115,934.40

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Solution

The fourth proportional to 382,262.40, 573,247.80 and 115,934.40 is: 173,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,262.40 : 573,247.80 = 115,934.40 : x
  2. Step 2: Convert to fraction form
    382,262.40/573,247.80 = 115,934.40/x
  3. Step 3: Cross multiply
    382,262.40x = 573,247.80 × 115,934.40
  4. Step 4: Simplify right side
    382,262.40x = 66,459,139,744.32
  5. Step 5: Solve for x
    x = 66,459,139,744.32/382,262.40
  6. Step 6: Final answer
    x = 173,857.38

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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.