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Finding the Fourth Proportional to 216,542.62, 298,835.49 and 121,053.34

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Solution

The fourth proportional to 216,542.62, 298,835.49 and 121,053.34 is: 167,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,542.62 : 298,835.49 = 121,053.34 : x
  2. Step 2: Convert to fraction form
    216,542.62/298,835.49 = 121,053.34/x
  3. Step 3: Cross multiply
    216,542.62x = 298,835.49 × 121,053.34
  4. Step 4: Simplify right side
    216,542.62x = 36,175,034,175.04
  5. Step 5: Solve for x
    x = 36,175,034,175.04/216,542.62
  6. Step 6: Final answer
    x = 167,057.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.