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Finding the Fourth Proportional to 210,013.75, 315,020.64 and 62,269.75

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Solution

The fourth proportional to 210,013.75, 315,020.64 and 62,269.75 is: 93,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,013.75 : 315,020.64 = 62,269.75 : x
  2. Step 2: Convert to fraction form
    210,013.75/315,020.64 = 62,269.75/x
  3. Step 3: Cross multiply
    210,013.75x = 315,020.64 × 62,269.75
  4. Step 4: Simplify right side
    210,013.75x = 19,616,256,497.64
  5. Step 5: Solve for x
    x = 19,616,256,497.64/210,013.75
  6. Step 6: Final answer
    x = 93,404.63

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1.5x scale

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.