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Finding the Fourth Proportional to 351,688.16, 526,931.22 and 251,335.64

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Solution

The fourth proportional to 351,688.16, 526,931.22 and 251,335.64 is: 376,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,688.16 : 526,931.22 = 251,335.64 : x
  2. Step 2: Convert to fraction form
    351,688.16/526,931.22 = 251,335.64/x
  3. Step 3: Cross multiply
    351,688.16x = 526,931.22 × 251,335.64
  4. Step 4: Simplify right side
    351,688.16x = 132,436,595,414.68
  5. Step 5: Solve for x
    x = 132,436,595,414.68/351,688.16
  6. Step 6: Final answer
    x = 376,573.94

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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.