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Finding the Fourth Proportional to 265,899.60, 398,516.79 and 132,817.01

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Solution

The fourth proportional to 265,899.60, 398,516.79 and 132,817.01 is: 199,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,899.60 : 398,516.79 = 132,817.01 : x
  2. Step 2: Convert to fraction form
    265,899.60/398,516.79 = 132,817.01/x
  3. Step 3: Cross multiply
    265,899.60x = 398,516.79 × 132,817.01
  4. Step 4: Simplify right side
    265,899.60x = 52,929,806,988.08
  5. Step 5: Solve for x
    x = 52,929,806,988.08/265,899.60
  6. Step 6: Final answer
    x = 199,059.37

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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.