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Finding the Fourth Proportional to 227,271.72, 313,637.02 and 125,300.80

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Solution

The fourth proportional to 227,271.72, 313,637.02 and 125,300.80 is: 172,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,271.72 : 313,637.02 = 125,300.80 : x
  2. Step 2: Convert to fraction form
    227,271.72/313,637.02 = 125,300.80/x
  3. Step 3: Cross multiply
    227,271.72x = 313,637.02 × 125,300.80
  4. Step 4: Simplify right side
    227,271.72x = 39,298,969,515.62
  5. Step 5: Solve for x
    x = 39,298,969,515.62/227,271.72
  6. Step 6: Final answer
    x = 172,916.23

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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.