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Finding the Fourth Proportional to 127,079.22, 190,916.72 and 119,898.03

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Solution

The fourth proportional to 127,079.22, 190,916.72 and 119,898.03 is: 180,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,079.22 : 190,916.72 = 119,898.03 : x
  2. Step 2: Convert to fraction form
    127,079.22/190,916.72 = 119,898.03/x
  3. Step 3: Cross multiply
    127,079.22x = 190,916.72 × 119,898.03
  4. Step 4: Simplify right side
    127,079.22x = 22,890,538,022.57
  5. Step 5: Solve for x
    x = 22,890,538,022.57/127,079.22
  6. Step 6: Final answer
    x = 180,128.10

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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.