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Finding the Fourth Proportional to 308,132.70, 461,421.45 and 245,924.70

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Solution

The fourth proportional to 308,132.70, 461,421.45 and 245,924.70 is: 368,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,132.70 : 461,421.45 = 245,924.70 : x
  2. Step 2: Convert to fraction form
    308,132.70/461,421.45 = 245,924.70/x
  3. Step 3: Cross multiply
    308,132.70x = 461,421.45 × 245,924.70
  4. Step 4: Simplify right side
    308,132.70x = 113,474,931,664.82
  5. Step 5: Solve for x
    x = 113,474,931,664.82/308,132.70
  6. Step 6: Final answer
    x = 368,266.44

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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.