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Finding the Fourth Proportional to 235,480.08, 353,232.30 and 77,720.82

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Solution

The fourth proportional to 235,480.08, 353,232.30 and 77,720.82 is: 116,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,480.08 : 353,232.30 = 77,720.82 : x
  2. Step 2: Convert to fraction form
    235,480.08/353,232.30 = 77,720.82/x
  3. Step 3: Cross multiply
    235,480.08x = 353,232.30 × 77,720.82
  4. Step 4: Simplify right side
    235,480.08x = 27,453,504,006.49
  5. Step 5: Solve for x
    x = 27,453,504,006.49/235,480.08
  6. Step 6: Final answer
    x = 116,585.25

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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.