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Finding the Fourth Proportional to 112,059.62, 154,642.28 and 61,758.62

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Solution

The fourth proportional to 112,059.62, 154,642.28 and 61,758.62 is: 85,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,059.62 : 154,642.28 = 61,758.62 : x
  2. Step 2: Convert to fraction form
    112,059.62/154,642.28 = 61,758.62/x
  3. Step 3: Cross multiply
    112,059.62x = 154,642.28 × 61,758.62
  4. Step 4: Simplify right side
    112,059.62x = 9,550,493,806.45
  5. Step 5: Solve for x
    x = 9,550,493,806.45/112,059.62
  6. Step 6: Final answer
    x = 85,226.90

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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.