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Finding the Fourth Proportional to 242,839.60, 364,270.20 and 82,913.20

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Solution

The fourth proportional to 242,839.60, 364,270.20 and 82,913.20 is: 124,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,839.60 : 364,270.20 = 82,913.20 : x
  2. Step 2: Convert to fraction form
    242,839.60/364,270.20 = 82,913.20/x
  3. Step 3: Cross multiply
    242,839.60x = 364,270.20 × 82,913.20
  4. Step 4: Simplify right side
    242,839.60x = 30,202,807,946.64
  5. Step 5: Solve for x
    x = 30,202,807,946.64/242,839.60
  6. Step 6: Final answer
    x = 124,373.49

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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.