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Finding the Fourth Proportional to 243,325.59, 364,989.27 and 74,844.78

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Solution

The fourth proportional to 243,325.59, 364,989.27 and 74,844.78 is: 112,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,325.59 : 364,989.27 = 74,844.78 : x
  2. Step 2: Convert to fraction form
    243,325.59/364,989.27 = 74,844.78/x
  3. Step 3: Cross multiply
    243,325.59x = 364,989.27 × 74,844.78
  4. Step 4: Simplify right side
    243,325.59x = 27,317,541,615.51
  5. Step 5: Solve for x
    x = 27,317,541,615.51/243,325.59
  6. Step 6: Final answer
    x = 112,267.44

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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.