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Finding the Fourth Proportional to 121,604.40, 182,407.21 and 54,966.51

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Solution

The fourth proportional to 121,604.40, 182,407.21 and 54,966.51 is: 82,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,604.40 : 182,407.21 = 54,966.51 : x
  2. Step 2: Convert to fraction form
    121,604.40/182,407.21 = 54,966.51/x
  3. Step 3: Cross multiply
    121,604.40x = 182,407.21 × 54,966.51
  4. Step 4: Simplify right side
    121,604.40x = 10,026,287,595.12
  5. Step 5: Solve for x
    x = 10,026,287,595.12/121,604.40
  6. Step 6: Final answer
    x = 82,450.04

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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.