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Finding the Fourth Proportional to 341,410.40, 512,139.90 and 104,752.70

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Solution

The fourth proportional to 341,410.40, 512,139.90 and 104,752.70 is: 157,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,410.40 : 512,139.90 = 104,752.70 : x
  2. Step 2: Convert to fraction form
    341,410.40/512,139.90 = 104,752.70/x
  3. Step 3: Cross multiply
    341,410.40x = 512,139.90 × 104,752.70
  4. Step 4: Simplify right side
    341,410.40x = 53,648,037,302.73
  5. Step 5: Solve for x
    x = 53,648,037,302.73/341,410.40
  6. Step 6: Final answer
    x = 157,136.51

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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.