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Finding the Fourth Proportional to 121,518.96, 182,297.88 and 51,398.88

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Solution

The fourth proportional to 121,518.96, 182,297.88 and 51,398.88 is: 77,106.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,518.96 : 182,297.88 = 51,398.88 : x
  2. Step 2: Convert to fraction form
    121,518.96/182,297.88 = 51,398.88/x
  3. Step 3: Cross multiply
    121,518.96x = 182,297.88 × 51,398.88
  4. Step 4: Simplify right side
    121,518.96x = 9,369,906,858.37
  5. Step 5: Solve for x
    x = 9,369,906,858.37/121,518.96
  6. Step 6: Final answer
    x = 77,106.54

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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.