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Finding the Fourth Proportional to 193,033.60, 289,564.80 and 68,358.40

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Solution

The fourth proportional to 193,033.60, 289,564.80 and 68,358.40 is: 102,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,033.60 : 289,564.80 = 68,358.40 : x
  2. Step 2: Convert to fraction form
    193,033.60/289,564.80 = 68,358.40/x
  3. Step 3: Cross multiply
    193,033.60x = 289,564.80 × 68,358.40
  4. Step 4: Simplify right side
    193,033.60x = 19,794,186,424.32
  5. Step 5: Solve for x
    x = 19,794,186,424.32/193,033.60
  6. Step 6: Final answer
    x = 102,542.70

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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.