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Finding the Fourth Proportional to 271,995.72, 375,246.54 and 157,253.28

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Solution

The fourth proportional to 271,995.72, 375,246.54 and 157,253.28 is: 216,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,995.72 : 375,246.54 = 157,253.28 : x
  2. Step 2: Convert to fraction form
    271,995.72/375,246.54 = 157,253.28/x
  3. Step 3: Cross multiply
    271,995.72x = 375,246.54 × 157,253.28
  4. Step 4: Simplify right side
    271,995.72x = 59,008,749,223.65
  5. Step 5: Solve for x
    x = 59,008,749,223.65/271,995.72
  6. Step 6: Final answer
    x = 216,947.34

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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.