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Finding the Fourth Proportional to 174,854.82, 262,419.45 and 121,919.70

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Solution

The fourth proportional to 174,854.82, 262,419.45 and 121,919.70 is: 182,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,854.82 : 262,419.45 = 121,919.70 : x
  2. Step 2: Convert to fraction form
    174,854.82/262,419.45 = 121,919.70/x
  3. Step 3: Cross multiply
    174,854.82x = 262,419.45 × 121,919.70
  4. Step 4: Simplify right side
    174,854.82x = 31,994,100,618.17
  5. Step 5: Solve for x
    x = 31,994,100,618.17/174,854.82
  6. Step 6: Final answer
    x = 182,975.23

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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.