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Finding the Fourth Proportional to 271,005.63, 373,977.84 and 156,289.11

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Solution

The fourth proportional to 271,005.63, 373,977.84 and 156,289.11 is: 215,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,005.63 : 373,977.84 = 156,289.11 : x
  2. Step 2: Convert to fraction form
    271,005.63/373,977.84 = 156,289.11/x
  3. Step 3: Cross multiply
    271,005.63x = 373,977.84 × 156,289.11
  4. Step 4: Simplify right side
    271,005.63x = 58,448,663,773.32
  5. Step 5: Solve for x
    x = 58,448,663,773.32/271,005.63
  6. Step 6: Final answer
    x = 215,673.25

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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.