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Finding the Fourth Proportional to 242,212.15, 363,154.20 and 123,786.10

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Solution

The fourth proportional to 242,212.15, 363,154.20 and 123,786.10 is: 185,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,212.15 : 363,154.20 = 123,786.10 : x
  2. Step 2: Convert to fraction form
    242,212.15/363,154.20 = 123,786.10/x
  3. Step 3: Cross multiply
    242,212.15x = 363,154.20 × 123,786.10
  4. Step 4: Simplify right side
    242,212.15x = 44,953,442,116.62
  5. Step 5: Solve for x
    x = 44,953,442,116.62/242,212.15
  6. Step 6: Final answer
    x = 185,595.32

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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.