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Finding the Fourth Proportional to 472,338.03, 708,375.32 and 130,699.17

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Solution

The fourth proportional to 472,338.03, 708,375.32 and 130,699.17 is: 196,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,338.03 : 708,375.32 = 130,699.17 : x
  2. Step 2: Convert to fraction form
    472,338.03/708,375.32 = 130,699.17/x
  3. Step 3: Cross multiply
    472,338.03x = 708,375.32 × 130,699.17
  4. Step 4: Simplify right side
    472,338.03x = 92,584,062,177.11
  5. Step 5: Solve for x
    x = 92,584,062,177.11/472,338.03
  6. Step 6: Final answer
    x = 196,012.30

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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.