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Finding the Fourth Proportional to 242,722.90, 363,911.55 and 92,905.30

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Solution

The fourth proportional to 242,722.90, 363,911.55 and 92,905.30 is: 139,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,722.90 : 363,911.55 = 92,905.30 : x
  2. Step 2: Convert to fraction form
    242,722.90/363,911.55 = 92,905.30/x
  3. Step 3: Cross multiply
    242,722.90x = 363,911.55 × 92,905.30
  4. Step 4: Simplify right side
    242,722.90x = 33,809,311,726.22
  5. Step 5: Solve for x
    x = 33,809,311,726.22/242,722.90
  6. Step 6: Final answer
    x = 139,291.81

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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.