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Finding the Fourth Proportional to 352,662.21, 528,826.55 and 136,622.13

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Solution

The fourth proportional to 352,662.21, 528,826.55 and 136,622.13 is: 204,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,662.21 : 528,826.55 = 136,622.13 : x
  2. Step 2: Convert to fraction form
    352,662.21/528,826.55 = 136,622.13/x
  3. Step 3: Cross multiply
    352,662.21x = 528,826.55 × 136,622.13
  4. Step 4: Simplify right side
    352,662.21x = 72,249,409,661.55
  5. Step 5: Solve for x
    x = 72,249,409,661.55/352,662.21
  6. Step 6: Final answer
    x = 204,868.59

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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.