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Finding the Fourth Proportional to 149,911.20, 224,866.80 and 127,360.80

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Solution

The fourth proportional to 149,911.20, 224,866.80 and 127,360.80 is: 191,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,911.20 : 224,866.80 = 127,360.80 : x
  2. Step 2: Convert to fraction form
    149,911.20/224,866.80 = 127,360.80/x
  3. Step 3: Cross multiply
    149,911.20x = 224,866.80 × 127,360.80
  4. Step 4: Simplify right side
    149,911.20x = 28,639,215,541.44
  5. Step 5: Solve for x
    x = 28,639,215,541.44/149,911.20
  6. Step 6: Final answer
    x = 191,041.20

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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.