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Finding the Fourth Proportional to 418,169.39, 627,277.91 and 118,626.53

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Solution

The fourth proportional to 418,169.39, 627,277.91 and 118,626.53 is: 177,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,169.39 : 627,277.91 = 118,626.53 : x
  2. Step 2: Convert to fraction form
    418,169.39/627,277.91 = 118,626.53/x
  3. Step 3: Cross multiply
    418,169.39x = 627,277.91 × 118,626.53
  4. Step 4: Simplify right side
    418,169.39x = 74,411,798,079.43
  5. Step 5: Solve for x
    x = 74,411,798,079.43/418,169.39
  6. Step 6: Final answer
    x = 177,946.55

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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.