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Finding the Fourth Proportional to 348,072, 522,108.48 and 151,080

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Solution

The fourth proportional to 348,072, 522,108.48 and 151,080 is: 226,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,072 : 522,108.48 = 151,080 : x
  2. Step 2: Convert to fraction form
    348,072/522,108.48 = 151,080/x
  3. Step 3: Cross multiply
    348,072x = 522,108.48 × 151,080
  4. Step 4: Simplify right side
    348,072x = 78,880,149,158.40
  5. Step 5: Solve for x
    x = 78,880,149,158.40/348,072
  6. Step 6: Final answer
    x = 226,620.21

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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.