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Finding the Fourth Proportional to 373,788, 560,915.28 and 152,172

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Solution

The fourth proportional to 373,788, 560,915.28 and 152,172 is: 228,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,788 : 560,915.28 = 152,172 : x
  2. Step 2: Convert to fraction form
    373,788/560,915.28 = 152,172/x
  3. Step 3: Cross multiply
    373,788x = 560,915.28 × 152,172
  4. Step 4: Simplify right side
    373,788x = 85,355,599,988.16
  5. Step 5: Solve for x
    x = 85,355,599,988.16/373,788
  6. Step 6: Final answer
    x = 228,352.97

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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.