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Finding the Fourth Proportional to 112,676.61, 155,493.45 and 67,352.39

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Solution

The fourth proportional to 112,676.61, 155,493.45 and 67,352.39 is: 92,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,676.61 : 155,493.45 = 67,352.39 : x
  2. Step 2: Convert to fraction form
    112,676.61/155,493.45 = 67,352.39/x
  3. Step 3: Cross multiply
    112,676.61x = 155,493.45 × 67,352.39
  4. Step 4: Simplify right side
    112,676.61x = 10,472,855,486.85
  5. Step 5: Solve for x
    x = 10,472,855,486.85/112,676.61
  6. Step 6: Final answer
    x = 92,946.14

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1.5x scale

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.