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Finding the Fourth Proportional to 510,567.48, 765,792.63 and 136,619.64

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Solution

The fourth proportional to 510,567.48, 765,792.63 and 136,619.64 is: 204,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,567.48 : 765,792.63 = 136,619.64 : x
  2. Step 2: Convert to fraction form
    510,567.48/765,792.63 = 136,619.64/x
  3. Step 3: Cross multiply
    510,567.48x = 765,792.63 × 136,619.64
  4. Step 4: Simplify right side
    510,567.48x = 104,622,313,425.25
  5. Step 5: Solve for x
    x = 104,622,313,425.25/510,567.48
  6. Step 6: Final answer
    x = 204,913.78

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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.