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Finding the Fourth Proportional to 352,919.61, 529,335.67 and 208,911.13

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Solution

The fourth proportional to 352,919.61, 529,335.67 and 208,911.13 is: 313,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,919.61 : 529,335.67 = 208,911.13 : x
  2. Step 2: Convert to fraction form
    352,919.61/529,335.67 = 208,911.13/x
  3. Step 3: Cross multiply
    352,919.61x = 529,335.67 × 208,911.13
  4. Step 4: Simplify right side
    352,919.61x = 110,584,112,969.01
  5. Step 5: Solve for x
    x = 110,584,112,969.01/352,919.61
  6. Step 6: Final answer
    x = 313,340.80

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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.