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Finding the Fourth Proportional to 352,715.40, 528,906.42 and 136,675.32

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Solution

The fourth proportional to 352,715.40, 528,906.42 and 136,675.32 is: 204,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,715.40 : 528,906.42 = 136,675.32 : x
  2. Step 2: Convert to fraction form
    352,715.40/528,906.42 = 136,675.32/x
  3. Step 3: Cross multiply
    352,715.40x = 528,906.42 × 136,675.32
  4. Step 4: Simplify right side
    352,715.40x = 72,288,454,203.55
  5. Step 5: Solve for x
    x = 72,288,454,203.55/352,715.40
  6. Step 6: Final answer
    x = 204,948.39

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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.