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Finding the Fourth Proportional to 423,627.54, 635,528.82 and 124,117.88

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Solution

The fourth proportional to 423,627.54, 635,528.82 and 124,117.88 is: 186,202.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,627.54 : 635,528.82 = 124,117.88 : x
  2. Step 2: Convert to fraction form
    423,627.54/635,528.82 = 124,117.88/x
  3. Step 3: Cross multiply
    423,627.54x = 635,528.82 × 124,117.88
  4. Step 4: Simplify right side
    423,627.54x = 78,880,489,817.30
  5. Step 5: Solve for x
    x = 78,880,489,817.30/423,627.54
  6. Step 6: Final answer
    x = 186,202.46

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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.