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Finding the Fourth Proportional to 132,368, 198,576.60 and 43,627.74

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Solution

The fourth proportional to 132,368, 198,576.60 and 43,627.74 is: 65,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,368 : 198,576.60 = 43,627.74 : x
  2. Step 2: Convert to fraction form
    132,368/198,576.60 = 43,627.74/x
  3. Step 3: Cross multiply
    132,368x = 198,576.60 × 43,627.74
  4. Step 4: Simplify right side
    132,368x = 8,663,448,274.88
  5. Step 5: Solve for x
    x = 8,663,448,274.88/132,368
  6. Step 6: Final answer
    x = 65,449.72

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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.