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Finding the Fourth Proportional to 132,001.80, 198,002.70 and 130,835.40

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Solution

The fourth proportional to 132,001.80, 198,002.70 and 130,835.40 is: 196,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,001.80 : 198,002.70 = 130,835.40 : x
  2. Step 2: Convert to fraction form
    132,001.80/198,002.70 = 130,835.40/x
  3. Step 3: Cross multiply
    132,001.80x = 198,002.70 × 130,835.40
  4. Step 4: Simplify right side
    132,001.80x = 25,905,762,455.58
  5. Step 5: Solve for x
    x = 25,905,762,455.58/132,001.80
  6. Step 6: Final answer
    x = 196,253.10

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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.