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Finding the Fourth Proportional to 192,690.30, 289,035.45 and 52,448.70

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Solution

The fourth proportional to 192,690.30, 289,035.45 and 52,448.70 is: 78,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,690.30 : 289,035.45 = 52,448.70 : x
  2. Step 2: Convert to fraction form
    192,690.30/289,035.45 = 52,448.70/x
  3. Step 3: Cross multiply
    192,690.30x = 289,035.45 × 52,448.70
  4. Step 4: Simplify right side
    192,690.30x = 15,159,533,606.42
  5. Step 5: Solve for x
    x = 15,159,533,606.42/192,690.30
  6. Step 6: Final answer
    x = 78,673.05

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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.