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Finding the Fourth Proportional to 251,045.20, 376,276.20 and 101,211.40

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Solution

The fourth proportional to 251,045.20, 376,276.20 and 101,211.40 is: 151,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,045.20 : 376,276.20 = 101,211.40 : x
  2. Step 2: Convert to fraction form
    251,045.20/376,276.20 = 101,211.40/x
  3. Step 3: Cross multiply
    251,045.20x = 376,276.20 × 101,211.40
  4. Step 4: Simplify right side
    251,045.20x = 38,083,440,988.68
  5. Step 5: Solve for x
    x = 38,083,440,988.68/251,045.20
  6. Step 6: Final answer
    x = 151,699.54

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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.