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Finding the Fourth Proportional to 371,744.21, 557,615.29 and 105,504.98

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Solution

The fourth proportional to 371,744.21, 557,615.29 and 105,504.98 is: 158,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,744.21 : 557,615.29 = 105,504.98 : x
  2. Step 2: Convert to fraction form
    371,744.21/557,615.29 = 105,504.98/x
  3. Step 3: Cross multiply
    371,744.21x = 557,615.29 × 105,504.98
  4. Step 4: Simplify right side
    371,744.21x = 58,831,190,301.71
  5. Step 5: Solve for x
    x = 58,831,190,301.71/371,744.21
  6. Step 6: Final answer
    x = 158,257.18

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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.