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Finding the Fourth Proportional to 371,012.44, 556,520.28 and 157,725.40

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Solution

The fourth proportional to 371,012.44, 556,520.28 and 157,725.40 is: 236,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,012.44 : 556,520.28 = 157,725.40 : x
  2. Step 2: Convert to fraction form
    371,012.44/556,520.28 = 157,725.40/x
  3. Step 3: Cross multiply
    371,012.44x = 556,520.28 × 157,725.40
  4. Step 4: Simplify right side
    371,012.44x = 87,777,385,753.88
  5. Step 5: Solve for x
    x = 87,777,385,753.88/371,012.44
  6. Step 6: Final answer
    x = 236,588.79

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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.