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Finding the Fourth Proportional to 70,178.73, 96,812.82 and 51,028.80

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Solution

The fourth proportional to 70,178.73, 96,812.82 and 51,028.80 is: 70,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.73 : 96,812.82 = 51,028.80 : x
  2. Step 2: Convert to fraction form
    70,178.73/96,812.82 = 51,028.80/x
  3. Step 3: Cross multiply
    70,178.73x = 96,812.82 × 51,028.80
  4. Step 4: Simplify right side
    70,178.73x = 4,940,242,029.22
  5. Step 5: Solve for x
    x = 4,940,242,029.22/70,178.73
  6. Step 6: Final answer
    x = 70,395.15

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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.