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Finding the Fourth Proportional to 193,085.60, 289,628.40 and 146,429.60

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Solution

The fourth proportional to 193,085.60, 289,628.40 and 146,429.60 is: 219,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,085.60 : 289,628.40 = 146,429.60 : x
  2. Step 2: Convert to fraction form
    193,085.60/289,628.40 = 146,429.60/x
  3. Step 3: Cross multiply
    193,085.60x = 289,628.40 × 146,429.60
  4. Step 4: Simplify right side
    193,085.60x = 42,410,170,760.64
  5. Step 5: Solve for x
    x = 42,410,170,760.64/193,085.60
  6. Step 6: Final answer
    x = 219,644.40

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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.