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Finding the Fourth Proportional to 401,473.20, 602,290.80 and 117,163.20

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Solution

The fourth proportional to 401,473.20, 602,290.80 and 117,163.20 is: 175,768.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,473.20 : 602,290.80 = 117,163.20 : x
  2. Step 2: Convert to fraction form
    401,473.20/602,290.80 = 117,163.20/x
  3. Step 3: Cross multiply
    401,473.20x = 602,290.80 × 117,163.20
  4. Step 4: Simplify right side
    401,473.20x = 70,566,317,458.56
  5. Step 5: Solve for x
    x = 70,566,317,458.56/401,473.20
  6. Step 6: Final answer
    x = 175,768.44

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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.