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Finding the Fourth Proportional to 121,808.66, 182,712.90 and 33,075.19

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Solution

The fourth proportional to 121,808.66, 182,712.90 and 33,075.19 is: 49,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,808.66 : 182,712.90 = 33,075.19 : x
  2. Step 2: Convert to fraction form
    121,808.66/182,712.90 = 33,075.19/x
  3. Step 3: Cross multiply
    121,808.66x = 182,712.90 × 33,075.19
  4. Step 4: Simplify right side
    121,808.66x = 6,043,263,508.86
  5. Step 5: Solve for x
    x = 6,043,263,508.86/121,808.66
  6. Step 6: Final answer
    x = 49,612.76

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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.