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Finding the Fourth Proportional to 192,874.69, 288,139.01 and 124,852.51

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Solution

The fourth proportional to 192,874.69, 288,139.01 and 124,852.51 is: 186,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,874.69 : 288,139.01 = 124,852.51 : x
  2. Step 2: Convert to fraction form
    192,874.69/288,139.01 = 124,852.51/x
  3. Step 3: Cross multiply
    192,874.69x = 288,139.01 × 124,852.51
  4. Step 4: Simplify right side
    192,874.69x = 35,974,878,627.42
  5. Step 5: Solve for x
    x = 35,974,878,627.42/192,874.69
  6. Step 6: Final answer
    x = 186,519.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.