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Finding the Fourth Proportional to 112,794.98, 155,650.34 and 61,797.56

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Solution

The fourth proportional to 112,794.98, 155,650.34 and 61,797.56 is: 85,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,794.98 : 155,650.34 = 61,797.56 : x
  2. Step 2: Convert to fraction form
    112,794.98/155,650.34 = 61,797.56/x
  3. Step 3: Cross multiply
    112,794.98x = 155,650.34 × 61,797.56
  4. Step 4: Simplify right side
    112,794.98x = 9,618,811,225.17
  5. Step 5: Solve for x
    x = 9,618,811,225.17/112,794.98
  6. Step 6: Final answer
    x = 85,276.94

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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.