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Finding the Fourth Proportional to 424,915.73, 637,373.66 and 140,529.96

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Solution

The fourth proportional to 424,915.73, 637,373.66 and 140,529.96 is: 210,794.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,915.73 : 637,373.66 = 140,529.96 : x
  2. Step 2: Convert to fraction form
    424,915.73/637,373.66 = 140,529.96/x
  3. Step 3: Cross multiply
    424,915.73x = 637,373.66 × 140,529.96
  4. Step 4: Simplify right side
    424,915.73x = 89,570,094,944.85
  5. Step 5: Solve for x
    x = 89,570,094,944.85/424,915.73
  6. Step 6: Final answer
    x = 210,794.96

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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.