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Finding the Fourth Proportional to 133,029.40, 199,544.08 and 88,742.64

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Solution

The fourth proportional to 133,029.40, 199,544.08 and 88,742.64 is: 133,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,029.40 : 199,544.08 = 88,742.64 : x
  2. Step 2: Convert to fraction form
    133,029.40/199,544.08 = 88,742.64/x
  3. Step 3: Cross multiply
    133,029.40x = 199,544.08 × 88,742.64
  4. Step 4: Simplify right side
    133,029.40x = 17,708,068,455.57
  5. Step 5: Solve for x
    x = 17,708,068,455.57/133,029.40
  6. Step 6: Final answer
    x = 133,113.95

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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.