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Finding the Fourth Proportional to 73,950.20, 110,925.30 and 21,361.40

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Solution

The fourth proportional to 73,950.20, 110,925.30 and 21,361.40 is: 32,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,950.20 : 110,925.30 = 21,361.40 : x
  2. Step 2: Convert to fraction form
    73,950.20/110,925.30 = 21,361.40/x
  3. Step 3: Cross multiply
    73,950.20x = 110,925.30 × 21,361.40
  4. Step 4: Simplify right side
    73,950.20x = 2,369,519,703.42
  5. Step 5: Solve for x
    x = 2,369,519,703.42/73,950.20
  6. Step 6: Final answer
    x = 32,042.10

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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.