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Finding the Fourth Proportional to 403,356.30, 605,034.45 and 166,868.70

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Solution

The fourth proportional to 403,356.30, 605,034.45 and 166,868.70 is: 250,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,356.30 : 605,034.45 = 166,868.70 : x
  2. Step 2: Convert to fraction form
    403,356.30/605,034.45 = 166,868.70/x
  3. Step 3: Cross multiply
    403,356.30x = 605,034.45 × 166,868.70
  4. Step 4: Simplify right side
    403,356.30x = 100,961,312,126.72
  5. Step 5: Solve for x
    x = 100,961,312,126.72/403,356.30
  6. Step 6: Final answer
    x = 250,303.05

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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.