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Finding the Fourth Proportional to 351,330.54, 526,916.96 and 161,608.70

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Solution

The fourth proportional to 351,330.54, 526,916.96 and 161,608.70 is: 242,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,330.54 : 526,916.96 = 161,608.70 : x
  2. Step 2: Convert to fraction form
    351,330.54/526,916.96 = 161,608.70/x
  3. Step 3: Cross multiply
    351,330.54x = 526,916.96 × 161,608.70
  4. Step 4: Simplify right side
    351,330.54x = 85,154,364,913.55
  5. Step 5: Solve for x
    x = 85,154,364,913.55/351,330.54
  6. Step 6: Final answer
    x = 242,376.78

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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.