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Finding the Fourth Proportional to 132,395.40, 198,690.30 and 88,007.40

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Solution

The fourth proportional to 132,395.40, 198,690.30 and 88,007.40 is: 132,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,395.40 : 198,690.30 = 88,007.40 : x
  2. Step 2: Convert to fraction form
    132,395.40/198,690.30 = 88,007.40/x
  3. Step 3: Cross multiply
    132,395.40x = 198,690.30 × 88,007.40
  4. Step 4: Simplify right side
    132,395.40x = 17,486,216,708.22
  5. Step 5: Solve for x
    x = 17,486,216,708.22/132,395.40
  6. Step 6: Final answer
    x = 132,075.71

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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.