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Finding the Fourth Proportional to 463,418.80, 695,128.20 and 164,237.20

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Solution

The fourth proportional to 463,418.80, 695,128.20 and 164,237.20 is: 246,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,418.80 : 695,128.20 = 164,237.20 : x
  2. Step 2: Convert to fraction form
    463,418.80/695,128.20 = 164,237.20/x
  3. Step 3: Cross multiply
    463,418.80x = 695,128.20 × 164,237.20
  4. Step 4: Simplify right side
    463,418.80x = 114,165,909,209.04
  5. Step 5: Solve for x
    x = 114,165,909,209.04/463,418.80
  6. Step 6: Final answer
    x = 246,355.80

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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.