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Finding the Fourth Proportional to 272,369.76, 375,829.84 and 151,512.60

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Solution

The fourth proportional to 272,369.76, 375,829.84 and 151,512.60 is: 209,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,369.76 : 375,829.84 = 151,512.60 : x
  2. Step 2: Convert to fraction form
    272,369.76/375,829.84 = 151,512.60/x
  3. Step 3: Cross multiply
    272,369.76x = 375,829.84 × 151,512.60
  4. Step 4: Simplify right side
    272,369.76x = 56,942,956,215.98
  5. Step 5: Solve for x
    x = 56,942,956,215.98/272,369.76
  6. Step 6: Final answer
    x = 209,064.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.