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Finding the Fourth Proportional to 112,499.70, 168,749.55 and 45,896.10

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Solution

The fourth proportional to 112,499.70, 168,749.55 and 45,896.10 is: 68,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,499.70 : 168,749.55 = 45,896.10 : x
  2. Step 2: Convert to fraction form
    112,499.70/168,749.55 = 45,896.10/x
  3. Step 3: Cross multiply
    112,499.70x = 168,749.55 × 45,896.10
  4. Step 4: Simplify right side
    112,499.70x = 7,744,946,221.76
  5. Step 5: Solve for x
    x = 7,744,946,221.76/112,499.70
  6. Step 6: Final answer
    x = 68,844.15

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Similar ratio
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1.5x scale

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.