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Finding the Fourth Proportional to 132,353.40, 198,530.10 and 130,603.80

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Solution

The fourth proportional to 132,353.40, 198,530.10 and 130,603.80 is: 195,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,353.40 : 198,530.10 = 130,603.80 : x
  2. Step 2: Convert to fraction form
    132,353.40/198,530.10 = 130,603.80/x
  3. Step 3: Cross multiply
    132,353.40x = 198,530.10 × 130,603.80
  4. Step 4: Simplify right side
    132,353.40x = 25,928,785,474.38
  5. Step 5: Solve for x
    x = 25,928,785,474.38/132,353.40
  6. Step 6: Final answer
    x = 195,905.70

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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.