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Finding the Fourth Proportional to 352,676.16, 529,018.56 and 103,363.20

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Solution

The fourth proportional to 352,676.16, 529,018.56 and 103,363.20 is: 155,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,676.16 : 529,018.56 = 103,363.20 : x
  2. Step 2: Convert to fraction form
    352,676.16/529,018.56 = 103,363.20/x
  3. Step 3: Cross multiply
    352,676.16x = 529,018.56 × 103,363.20
  4. Step 4: Simplify right side
    352,676.16x = 54,681,051,220.99
  5. Step 5: Solve for x
    x = 54,681,051,220.99/352,676.16
  6. Step 6: Final answer
    x = 155,046.07

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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.