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Finding the Fourth Proportional to 121,116.96, 181,675.59 and 54,544.68

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Solution

The fourth proportional to 121,116.96, 181,675.59 and 54,544.68 is: 81,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116.96 : 181,675.59 = 54,544.68 : x
  2. Step 2: Convert to fraction form
    121,116.96/181,675.59 = 54,544.68/x
  3. Step 3: Cross multiply
    121,116.96x = 181,675.59 × 54,544.68
  4. Step 4: Simplify right side
    121,116.96x = 9,909,436,920.36
  5. Step 5: Solve for x
    x = 9,909,436,920.36/121,116.96
  6. Step 6: Final answer
    x = 81,817.09

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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.