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Finding the Fourth Proportional to 112,049.88, 154,636.34 and 61,748.88

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Solution

The fourth proportional to 112,049.88, 154,636.34 and 61,748.88 is: 85,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,049.88 : 154,636.34 = 61,748.88 : x
  2. Step 2: Convert to fraction form
    112,049.88/154,636.34 = 61,748.88/x
  3. Step 3: Cross multiply
    112,049.88x = 154,636.34 × 61,748.88
  4. Step 4: Simplify right side
    112,049.88x = 9,548,620,802.30
  5. Step 5: Solve for x
    x = 9,548,620,802.30/112,049.88
  6. Step 6: Final answer
    x = 85,217.59

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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.