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Finding the Fourth Proportional to 132,755.40, 199,133.10 and 127,506.60

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Solution

The fourth proportional to 132,755.40, 199,133.10 and 127,506.60 is: 191,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,755.40 : 199,133.10 = 127,506.60 : x
  2. Step 2: Convert to fraction form
    132,755.40/199,133.10 = 127,506.60/x
  3. Step 3: Cross multiply
    132,755.40x = 199,133.10 × 127,506.60
  4. Step 4: Simplify right side
    132,755.40x = 25,390,784,528.46
  5. Step 5: Solve for x
    x = 25,390,784,528.46/132,755.40
  6. Step 6: Final answer
    x = 191,259.90

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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.