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Finding the Fourth Proportional to 210,467.70, 315,701.55 and 62,723.70

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Solution

The fourth proportional to 210,467.70, 315,701.55 and 62,723.70 is: 94,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,467.70 : 315,701.55 = 62,723.70 : x
  2. Step 2: Convert to fraction form
    210,467.70/315,701.55 = 62,723.70/x
  3. Step 3: Cross multiply
    210,467.70x = 315,701.55 × 62,723.70
  4. Step 4: Simplify right side
    210,467.70x = 19,801,969,311.74
  5. Step 5: Solve for x
    x = 19,801,969,311.74/210,467.70
  6. Step 6: Final answer
    x = 94,085.55

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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.