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Finding the Fourth Proportional to 271,812.65, 375,091.16 and 150,961.72

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Solution

The fourth proportional to 271,812.65, 375,091.16 and 150,961.72 is: 208,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,812.65 : 375,091.16 = 150,961.72 : x
  2. Step 2: Convert to fraction form
    271,812.65/375,091.16 = 150,961.72/x
  3. Step 3: Cross multiply
    271,812.65x = 375,091.16 × 150,961.72
  4. Step 4: Simplify right side
    271,812.65x = 56,624,406,670.40
  5. Step 5: Solve for x
    x = 56,624,406,670.40/271,812.65
  6. Step 6: Final answer
    x = 208,321.45

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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.