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Finding the Fourth Proportional to 144,466.80, 199,419.48 and 87,874.80

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Solution

The fourth proportional to 144,466.80, 199,419.48 and 87,874.80 is: 121,300.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,466.80 : 199,419.48 = 87,874.80 : x
  2. Step 2: Convert to fraction form
    144,466.80/199,419.48 = 87,874.80/x
  3. Step 3: Cross multiply
    144,466.80x = 199,419.48 × 87,874.80
  4. Step 4: Simplify right side
    144,466.80x = 17,523,946,921.10
  5. Step 5: Solve for x
    x = 17,523,946,921.10/144,466.80
  6. Step 6: Final answer
    x = 121,300.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.