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Finding the Fourth Proportional to 62,031.80, 92,945.30 and 52,815.80

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Solution

The fourth proportional to 62,031.80, 92,945.30 and 52,815.80 is: 79,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,031.80 : 92,945.30 = 52,815.80 : x
  2. Step 2: Convert to fraction form
    62,031.80/92,945.30 = 52,815.80/x
  3. Step 3: Cross multiply
    62,031.80x = 92,945.30 × 52,815.80
  4. Step 4: Simplify right side
    62,031.80x = 4,908,980,375.74
  5. Step 5: Solve for x
    x = 4,908,980,375.74/62,031.80
  6. Step 6: Final answer
    x = 79,136.51

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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.