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Finding the Fourth Proportional to 242,388.45, 363,352.64 and 84,574.53

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Solution

The fourth proportional to 242,388.45, 363,352.64 and 84,574.53 is: 126,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,388.45 : 363,352.64 = 84,574.53 : x
  2. Step 2: Convert to fraction form
    242,388.45/363,352.64 = 84,574.53/x
  3. Step 3: Cross multiply
    242,388.45x = 363,352.64 × 84,574.53
  4. Step 4: Simplify right side
    242,388.45x = 30,730,378,329.39
  5. Step 5: Solve for x
    x = 30,730,378,329.39/242,388.45
  6. Step 6: Final answer
    x = 126,781.53

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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.