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Finding the Fourth Proportional to 242,810.88, 364,260.12 and 74,328.12

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Solution

The fourth proportional to 242,810.88, 364,260.12 and 74,328.12 is: 111,505.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,810.88 : 364,260.12 = 74,328.12 : x
  2. Step 2: Convert to fraction form
    242,810.88/364,260.12 = 74,328.12/x
  3. Step 3: Cross multiply
    242,810.88x = 364,260.12 × 74,328.12
  4. Step 4: Simplify right side
    242,810.88x = 27,074,769,910.57
  5. Step 5: Solve for x
    x = 27,074,769,910.57/242,810.88
  6. Step 6: Final answer
    x = 111,505.59

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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.