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Finding the Fourth Proportional to 242,556.30, 363,834.45 and 124,458.30

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Solution

The fourth proportional to 242,556.30, 363,834.45 and 124,458.30 is: 186,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,556.30 : 363,834.45 = 124,458.30 : x
  2. Step 2: Convert to fraction form
    242,556.30/363,834.45 = 124,458.30/x
  3. Step 3: Cross multiply
    242,556.30x = 363,834.45 × 124,458.30
  4. Step 4: Simplify right side
    242,556.30x = 45,282,217,128.44
  5. Step 5: Solve for x
    x = 45,282,217,128.44/242,556.30
  6. Step 6: Final answer
    x = 186,687.45

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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.