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Finding the Fourth Proportional to 561,699.48, 842,374.20 and 187,635

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Solution

The fourth proportional to 561,699.48, 842,374.20 and 187,635 is: 281,394.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,699.48 : 842,374.20 = 187,635 : x
  2. Step 2: Convert to fraction form
    561,699.48/842,374.20 = 187,635/x
  3. Step 3: Cross multiply
    561,699.48x = 842,374.20 × 187,635
  4. Step 4: Simplify right side
    561,699.48x = 158,058,883,017
  5. Step 5: Solve for x
    x = 158,058,883,017/561,699.48
  6. Step 6: Final answer
    x = 281,394.03

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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.