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Finding the Fourth Proportional to 193,037.60, 289,599.60 and 74,698.40

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Solution

The fourth proportional to 193,037.60, 289,599.60 and 74,698.40 is: 112,064.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,037.60 : 289,599.60 = 74,698.40 : x
  2. Step 2: Convert to fraction form
    193,037.60/289,599.60 = 74,698.40/x
  3. Step 3: Cross multiply
    193,037.60x = 289,599.60 × 74,698.40
  4. Step 4: Simplify right side
    193,037.60x = 21,632,626,760.64
  5. Step 5: Solve for x
    x = 21,632,626,760.64/193,037.60
  6. Step 6: Final answer
    x = 112,064.32

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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.