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Finding the Fourth Proportional to 228,164.79, 314,869.50 and 126,184.98

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Solution

The fourth proportional to 228,164.79, 314,869.50 and 126,184.98 is: 174,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,164.79 : 314,869.50 = 126,184.98 : x
  2. Step 2: Convert to fraction form
    228,164.79/314,869.50 = 126,184.98/x
  3. Step 3: Cross multiply
    228,164.79x = 314,869.50 × 126,184.98
  4. Step 4: Simplify right side
    228,164.79x = 39,731,801,560.11
  5. Step 5: Solve for x
    x = 39,731,801,560.11/228,164.79
  6. Step 6: Final answer
    x = 174,136.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.