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Finding the Fourth Proportional to 561,841.41, 842,878.75 and 187,854.69

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Solution

The fourth proportional to 561,841.41, 842,878.75 and 187,854.69 is: 281,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,841.41 : 842,878.75 = 187,854.69 : x
  2. Step 2: Convert to fraction form
    561,841.41/842,878.75 = 187,854.69/x
  3. Step 3: Cross multiply
    561,841.41x = 842,878.75 × 187,854.69
  4. Step 4: Simplify right side
    561,841.41x = 158,338,726,288.84
  5. Step 5: Solve for x
    x = 158,338,726,288.84/561,841.41
  6. Step 6: Final answer
    x = 281,821.03

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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.