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Finding the Fourth Proportional to 418,706.69, 627,965.69 and 119,180.63

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Solution

The fourth proportional to 418,706.69, 627,965.69 and 119,180.63 is: 178,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,706.69 : 627,965.69 = 119,180.63 : x
  2. Step 2: Convert to fraction form
    418,706.69/627,965.69 = 119,180.63/x
  3. Step 3: Cross multiply
    418,706.69x = 627,965.69 × 119,180.63
  4. Step 4: Simplify right side
    418,706.69x = 74,841,346,552.58
  5. Step 5: Solve for x
    x = 74,841,346,552.58/418,706.69
  6. Step 6: Final answer
    x = 178,744.09

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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.