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Finding the Fourth Proportional to 192,875.90, 289,313.85 and 68,200.70

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Solution

The fourth proportional to 192,875.90, 289,313.85 and 68,200.70 is: 102,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,875.90 : 289,313.85 = 68,200.70 : x
  2. Step 2: Convert to fraction form
    192,875.90/289,313.85 = 68,200.70/x
  3. Step 3: Cross multiply
    192,875.90x = 289,313.85 × 68,200.70
  4. Step 4: Simplify right side
    192,875.90x = 19,731,407,089.70
  5. Step 5: Solve for x
    x = 19,731,407,089.70/192,875.90
  6. Step 6: Final answer
    x = 102,301.05

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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.