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Finding the Fourth Proportional to 243,996.97, 336,715.77 and 136,567

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Solution

The fourth proportional to 243,996.97, 336,715.77 and 136,567 is: 188,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,996.97 : 336,715.77 = 136,567 : x
  2. Step 2: Convert to fraction form
    243,996.97/336,715.77 = 136,567/x
  3. Step 3: Cross multiply
    243,996.97x = 336,715.77 × 136,567
  4. Step 4: Simplify right side
    243,996.97x = 45,984,262,561.59
  5. Step 5: Solve for x
    x = 45,984,262,561.59/243,996.97
  6. Step 6: Final answer
    x = 188,462.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.