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Finding the Fourth Proportional to 122,235.43, 183,315.84 and 84,527.11

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Solution

The fourth proportional to 122,235.43, 183,315.84 and 84,527.11 is: 126,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,235.43 : 183,315.84 = 84,527.11 : x
  2. Step 2: Convert to fraction form
    122,235.43/183,315.84 = 84,527.11/x
  3. Step 3: Cross multiply
    122,235.43x = 183,315.84 × 84,527.11
  4. Step 4: Simplify right side
    122,235.43x = 15,495,158,172.42
  5. Step 5: Solve for x
    x = 15,495,158,172.42/122,235.43
  6. Step 6: Final answer
    x = 126,764.87

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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.