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Finding the Fourth Proportional to 82,994.60, 124,464.81 and 26,821.51

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Solution

The fourth proportional to 82,994.60, 124,464.81 and 26,821.51 is: 40,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,994.60 : 124,464.81 = 26,821.51 : x
  2. Step 2: Convert to fraction form
    82,994.60/124,464.81 = 26,821.51/x
  3. Step 3: Cross multiply
    82,994.60x = 124,464.81 × 26,821.51
  4. Step 4: Simplify right side
    82,994.60x = 3,338,334,146.06
  5. Step 5: Solve for x
    x = 3,338,334,146.06/82,994.60
  6. Step 6: Final answer
    x = 40,223.51

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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.