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Finding the Fourth Proportional to 192,666.34, 289,001.67 and 86,055.72

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Solution

The fourth proportional to 192,666.34, 289,001.67 and 86,055.72 is: 129,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,666.34 : 289,001.67 = 86,055.72 : x
  2. Step 2: Convert to fraction form
    192,666.34/289,001.67 = 86,055.72/x
  3. Step 3: Cross multiply
    192,666.34x = 289,001.67 × 86,055.72
  4. Step 4: Simplify right side
    192,666.34x = 24,870,246,793.05
  5. Step 5: Solve for x
    x = 24,870,246,793.05/192,666.34
  6. Step 6: Final answer
    x = 129,084.54

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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.