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Finding the Fourth Proportional to 112,358.53, 168,472.59 and 53,193.70

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Solution

The fourth proportional to 112,358.53, 168,472.59 and 53,193.70 is: 79,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,358.53 : 168,472.59 = 53,193.70 : x
  2. Step 2: Convert to fraction form
    112,358.53/168,472.59 = 53,193.70/x
  3. Step 3: Cross multiply
    112,358.53x = 168,472.59 × 53,193.70
  4. Step 4: Simplify right side
    112,358.53x = 8,961,680,410.68
  5. Step 5: Solve for x
    x = 8,961,680,410.68/112,358.53
  6. Step 6: Final answer
    x = 79,759.68

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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.