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Finding the Fourth Proportional to 245,725.90, 368,605.52 and 83,553.90

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Solution

The fourth proportional to 245,725.90, 368,605.52 and 83,553.90 is: 125,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,725.90 : 368,605.52 = 83,553.90 : x
  2. Step 2: Convert to fraction form
    245,725.90/368,605.52 = 83,553.90/x
  3. Step 3: Cross multiply
    245,725.90x = 368,605.52 × 83,553.90
  4. Step 4: Simplify right side
    245,725.90x = 30,798,428,757.53
  5. Step 5: Solve for x
    x = 30,798,428,757.53/245,725.90
  6. Step 6: Final answer
    x = 125,336.52

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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.