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Finding the Fourth Proportional to 242,871.31, 364,331.27 and 74,389.69

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Solution

The fourth proportional to 242,871.31, 364,331.27 and 74,389.69 is: 111,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,871.31 : 364,331.27 = 74,389.69 : x
  2. Step 2: Convert to fraction form
    242,871.31/364,331.27 = 74,389.69/x
  3. Step 3: Cross multiply
    242,871.31x = 364,331.27 × 74,389.69
  4. Step 4: Simplify right side
    242,871.31x = 27,102,490,455.55
  5. Step 5: Solve for x
    x = 27,102,490,455.55/242,871.31
  6. Step 6: Final answer
    x = 111,591.98

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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.