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Finding the Fourth Proportional to 358,086.15, 537,121.42 and 168,441.40

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Solution

The fourth proportional to 358,086.15, 537,121.42 and 168,441.40 is: 252,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,086.15 : 537,121.42 = 168,441.40 : x
  2. Step 2: Convert to fraction form
    358,086.15/537,121.42 = 168,441.40/x
  3. Step 3: Cross multiply
    358,086.15x = 537,121.42 × 168,441.40
  4. Step 4: Simplify right side
    358,086.15x = 90,473,483,954.79
  5. Step 5: Solve for x
    x = 90,473,483,954.79/358,086.15
  6. Step 6: Final answer
    x = 252,658.43

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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.