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Finding the Fourth Proportional to 119,407.55, 178,967.13 and 52,772.09

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Solution

The fourth proportional to 119,407.55, 178,967.13 and 52,772.09 is: 79,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,407.55 : 178,967.13 = 52,772.09 : x
  2. Step 2: Convert to fraction form
    119,407.55/178,967.13 = 52,772.09/x
  3. Step 3: Cross multiply
    119,407.55x = 178,967.13 × 52,772.09
  4. Step 4: Simplify right side
    119,407.55x = 9,444,469,491.40
  5. Step 5: Solve for x
    x = 9,444,469,491.40/119,407.55
  6. Step 6: Final answer
    x = 79,094.41

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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.