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Finding the Fourth Proportional to 242,801.55, 364,243.94 and 74,317.70

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Solution

The fourth proportional to 242,801.55, 364,243.94 and 74,317.70 is: 111,489.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,801.55 : 364,243.94 = 74,317.70 : x
  2. Step 2: Convert to fraction form
    242,801.55/364,243.94 = 74,317.70/x
  3. Step 3: Cross multiply
    242,801.55x = 364,243.94 × 74,317.70
  4. Step 4: Simplify right side
    242,801.55x = 27,069,772,677.45
  5. Step 5: Solve for x
    x = 27,069,772,677.45/242,801.55
  6. Step 6: Final answer
    x = 111,489.29

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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.