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Finding the Fourth Proportional to 262,160.57, 393,238.08 and 84,663.65

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Solution

The fourth proportional to 262,160.57, 393,238.08 and 84,663.65 is: 126,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,160.57 : 393,238.08 = 84,663.65 : x
  2. Step 2: Convert to fraction form
    262,160.57/393,238.08 = 84,663.65/x
  3. Step 3: Cross multiply
    262,160.57x = 393,238.08 × 84,663.65
  4. Step 4: Simplify right side
    262,160.57x = 33,292,969,205.60
  5. Step 5: Solve for x
    x = 33,292,969,205.60/262,160.57
  6. Step 6: Final answer
    x = 126,994.57

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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.