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Finding the Fourth Proportional to 517,563.60, 776,338.36 and 133,310.28

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Solution

The fourth proportional to 517,563.60, 776,338.36 and 133,310.28 is: 199,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,563.60 : 776,338.36 = 133,310.28 : x
  2. Step 2: Convert to fraction form
    517,563.60/776,338.36 = 133,310.28/x
  3. Step 3: Cross multiply
    517,563.60x = 776,338.36 × 133,310.28
  4. Step 4: Simplify right side
    517,563.60x = 103,493,884,146.34
  5. Step 5: Solve for x
    x = 103,493,884,146.34/517,563.60
  6. Step 6: Final answer
    x = 199,963.61

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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.