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Finding the Fourth Proportional to 124,371, 171,512.10 and 83,626.92

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Solution

The fourth proportional to 124,371, 171,512.10 and 83,626.92 is: 115,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,371 : 171,512.10 = 83,626.92 : x
  2. Step 2: Convert to fraction form
    124,371/171,512.10 = 83,626.92/x
  3. Step 3: Cross multiply
    124,371x = 171,512.10 × 83,626.92
  4. Step 4: Simplify right side
    124,371x = 14,343,028,665.73
  5. Step 5: Solve for x
    x = 14,343,028,665.73/124,371
  6. Step 6: Final answer
    x = 115,324.54

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1.5x scale

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.