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Finding the Fourth Proportional to 352,119.40, 528,179.10 and 102,801.40

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Solution

The fourth proportional to 352,119.40, 528,179.10 and 102,801.40 is: 154,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,119.40 : 528,179.10 = 102,801.40 : x
  2. Step 2: Convert to fraction form
    352,119.40/528,179.10 = 102,801.40/x
  3. Step 3: Cross multiply
    352,119.40x = 528,179.10 × 102,801.40
  4. Step 4: Simplify right side
    352,119.40x = 54,297,550,930.74
  5. Step 5: Solve for x
    x = 54,297,550,930.74/352,119.40
  6. Step 6: Final answer
    x = 154,202.10

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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.