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Finding the Fourth Proportional to 129,506.61, 194,287.74 and 73,373.61

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Solution

The fourth proportional to 129,506.61, 194,287.74 and 73,373.61 is: 110,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,506.61 : 194,287.74 = 73,373.61 : x
  2. Step 2: Convert to fraction form
    129,506.61/194,287.74 = 73,373.61/x
  3. Step 3: Cross multiply
    129,506.61x = 194,287.74 × 73,373.61
  4. Step 4: Simplify right side
    129,506.61x = 14,255,592,862.54
  5. Step 5: Solve for x
    x = 14,255,592,862.54/129,506.61
  6. Step 6: Final answer
    x = 110,076.18

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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.