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Finding the Fourth Proportional to 171,604.39, 236,829.68 and 103,655.11

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Solution

The fourth proportional to 171,604.39, 236,829.68 and 103,655.11 is: 143,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,604.39 : 236,829.68 = 103,655.11 : x
  2. Step 2: Convert to fraction form
    171,604.39/236,829.68 = 103,655.11/x
  3. Step 3: Cross multiply
    171,604.39x = 236,829.68 × 103,655.11
  4. Step 4: Simplify right side
    171,604.39x = 24,548,606,531.66
  5. Step 5: Solve for x
    x = 24,548,606,531.66/171,604.39
  6. Step 6: Final answer
    x = 143,053.49

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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.