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Finding the Fourth Proportional to 418,211.27, 627,314.17 and 118,692.04

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Solution

The fourth proportional to 418,211.27, 627,314.17 and 118,692.04 is: 178,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,211.27 : 627,314.17 = 118,692.04 : x
  2. Step 2: Convert to fraction form
    418,211.27/627,314.17 = 118,692.04/x
  3. Step 3: Cross multiply
    418,211.27x = 627,314.17 × 118,692.04
  4. Step 4: Simplify right side
    418,211.27x = 74,457,194,828.18
  5. Step 5: Solve for x
    x = 74,457,194,828.18/418,211.27
  6. Step 6: Final answer
    x = 178,037.27

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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.